Are there serious Balance Implications to permitting Bonus Actions to be Readied/Prepared?

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My Ancients Paladin is commonly stymied by the limitation on Readied Actions, in that Bonus Actions cannot under any circumstances, per RAW, be "prepared".



For example, suppose a Paladin wished to react to a creature trying to cross a bridge. She would prepare to cast Misty Step to teleport in front of them, blocking their way, and (on a successful roll) prevent them from crossing the bridge. To me, this seems like a reasonable use of mechanics—except that it's explicitly disallowed per RAW:




Ready



Sometimes you want to get the jump on a foe or wait for a particular circumstance before you act. To do so, you can take the Ready action on your turn so that you can act later in the round using your reaction.



...



When you ready a spell, you cast it as normal but hold its energy, which you release with your reaction when the trigger occurs. To be readied, a spell must have a casting time of 1 action..




Misty Step, with a casting time of 1 bonus Action, is expressly disallowed.



To fix this, I'd like to permit in my games the following modification to this rule to permit these kinds of mechanics:




Readying a Bonus Action



When a character uses the Ready Action, they may choose to ready a Bonus Action or a spell with a casting time of 1 Bonus Action, instead of a regular Action, to be used as their Reaction. They may do this by using a Bonus Action on their turn, in addition to the Action used to perform the Ready Action. Bonus Actions prepared in this way are not subject to the normal limitation placed on Bonus Actions where they must be performed on the character's turn, but otherwise obey the restrictions placed on Bonus Actions.




For example, I would have to spend my Action and my bonus action to ready Misty Step. Any time between when I readied it and the beginning of my next turn, once my trigger is met, I can release the spell as a reaction.



Does this seem like a reasonable modification to the rules, or are there some obvious/non-obvious exploits that could be used if I were to permit this rule in my games?










share|improve this question



















  • 2




    @NautArch This question is intended to examine any Bonus Action, with Misty Step provided as a "This use seems reasonable but is disallowed by RAW" example. I don't think it's necessary for an answer to consider every possible interaction, just to disprove my null hypothesis, which assumes there are no exploitable interactions.
    – Xirema
    2 hours ago











  • Would you also be rewriting the Bonus Action section of the rules that says that bonus action must be taken on your turn? Because, as written, your rule would still work with that technically but would force bonus action to be triggered on the turn you ready them. If that is not your intent you should either add something to the modification that supersedes the general rule for Bonus Actions or change the general rule for bonus actions as an addition to this change.
    – Rubiksmoose
    1 hour ago
















up vote
7
down vote

favorite












My Ancients Paladin is commonly stymied by the limitation on Readied Actions, in that Bonus Actions cannot under any circumstances, per RAW, be "prepared".



For example, suppose a Paladin wished to react to a creature trying to cross a bridge. She would prepare to cast Misty Step to teleport in front of them, blocking their way, and (on a successful roll) prevent them from crossing the bridge. To me, this seems like a reasonable use of mechanics—except that it's explicitly disallowed per RAW:




Ready



Sometimes you want to get the jump on a foe or wait for a particular circumstance before you act. To do so, you can take the Ready action on your turn so that you can act later in the round using your reaction.



...



When you ready a spell, you cast it as normal but hold its energy, which you release with your reaction when the trigger occurs. To be readied, a spell must have a casting time of 1 action..




Misty Step, with a casting time of 1 bonus Action, is expressly disallowed.



To fix this, I'd like to permit in my games the following modification to this rule to permit these kinds of mechanics:




Readying a Bonus Action



When a character uses the Ready Action, they may choose to ready a Bonus Action or a spell with a casting time of 1 Bonus Action, instead of a regular Action, to be used as their Reaction. They may do this by using a Bonus Action on their turn, in addition to the Action used to perform the Ready Action. Bonus Actions prepared in this way are not subject to the normal limitation placed on Bonus Actions where they must be performed on the character's turn, but otherwise obey the restrictions placed on Bonus Actions.




For example, I would have to spend my Action and my bonus action to ready Misty Step. Any time between when I readied it and the beginning of my next turn, once my trigger is met, I can release the spell as a reaction.



Does this seem like a reasonable modification to the rules, or are there some obvious/non-obvious exploits that could be used if I were to permit this rule in my games?










share|improve this question



















  • 2




    @NautArch This question is intended to examine any Bonus Action, with Misty Step provided as a "This use seems reasonable but is disallowed by RAW" example. I don't think it's necessary for an answer to consider every possible interaction, just to disprove my null hypothesis, which assumes there are no exploitable interactions.
    – Xirema
    2 hours ago











  • Would you also be rewriting the Bonus Action section of the rules that says that bonus action must be taken on your turn? Because, as written, your rule would still work with that technically but would force bonus action to be triggered on the turn you ready them. If that is not your intent you should either add something to the modification that supersedes the general rule for Bonus Actions or change the general rule for bonus actions as an addition to this change.
    – Rubiksmoose
    1 hour ago












up vote
7
down vote

favorite









up vote
7
down vote

favorite











My Ancients Paladin is commonly stymied by the limitation on Readied Actions, in that Bonus Actions cannot under any circumstances, per RAW, be "prepared".



For example, suppose a Paladin wished to react to a creature trying to cross a bridge. She would prepare to cast Misty Step to teleport in front of them, blocking their way, and (on a successful roll) prevent them from crossing the bridge. To me, this seems like a reasonable use of mechanics—except that it's explicitly disallowed per RAW:




Ready



Sometimes you want to get the jump on a foe or wait for a particular circumstance before you act. To do so, you can take the Ready action on your turn so that you can act later in the round using your reaction.



...



When you ready a spell, you cast it as normal but hold its energy, which you release with your reaction when the trigger occurs. To be readied, a spell must have a casting time of 1 action..




Misty Step, with a casting time of 1 bonus Action, is expressly disallowed.



To fix this, I'd like to permit in my games the following modification to this rule to permit these kinds of mechanics:




Readying a Bonus Action



When a character uses the Ready Action, they may choose to ready a Bonus Action or a spell with a casting time of 1 Bonus Action, instead of a regular Action, to be used as their Reaction. They may do this by using a Bonus Action on their turn, in addition to the Action used to perform the Ready Action. Bonus Actions prepared in this way are not subject to the normal limitation placed on Bonus Actions where they must be performed on the character's turn, but otherwise obey the restrictions placed on Bonus Actions.




For example, I would have to spend my Action and my bonus action to ready Misty Step. Any time between when I readied it and the beginning of my next turn, once my trigger is met, I can release the spell as a reaction.



Does this seem like a reasonable modification to the rules, or are there some obvious/non-obvious exploits that could be used if I were to permit this rule in my games?










share|improve this question















My Ancients Paladin is commonly stymied by the limitation on Readied Actions, in that Bonus Actions cannot under any circumstances, per RAW, be "prepared".



For example, suppose a Paladin wished to react to a creature trying to cross a bridge. She would prepare to cast Misty Step to teleport in front of them, blocking their way, and (on a successful roll) prevent them from crossing the bridge. To me, this seems like a reasonable use of mechanics—except that it's explicitly disallowed per RAW:




Ready



Sometimes you want to get the jump on a foe or wait for a particular circumstance before you act. To do so, you can take the Ready action on your turn so that you can act later in the round using your reaction.



...



When you ready a spell, you cast it as normal but hold its energy, which you release with your reaction when the trigger occurs. To be readied, a spell must have a casting time of 1 action..




Misty Step, with a casting time of 1 bonus Action, is expressly disallowed.



To fix this, I'd like to permit in my games the following modification to this rule to permit these kinds of mechanics:




Readying a Bonus Action



When a character uses the Ready Action, they may choose to ready a Bonus Action or a spell with a casting time of 1 Bonus Action, instead of a regular Action, to be used as their Reaction. They may do this by using a Bonus Action on their turn, in addition to the Action used to perform the Ready Action. Bonus Actions prepared in this way are not subject to the normal limitation placed on Bonus Actions where they must be performed on the character's turn, but otherwise obey the restrictions placed on Bonus Actions.




For example, I would have to spend my Action and my bonus action to ready Misty Step. Any time between when I readied it and the beginning of my next turn, once my trigger is met, I can release the spell as a reaction.



Does this seem like a reasonable modification to the rules, or are there some obvious/non-obvious exploits that could be used if I were to permit this rule in my games?







dnd-5e house-rules readied-action






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edited 44 mins ago









Rubiksmoose

38.6k5191295




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asked 2 hours ago









Xirema

6,6521749




6,6521749







  • 2




    @NautArch This question is intended to examine any Bonus Action, with Misty Step provided as a "This use seems reasonable but is disallowed by RAW" example. I don't think it's necessary for an answer to consider every possible interaction, just to disprove my null hypothesis, which assumes there are no exploitable interactions.
    – Xirema
    2 hours ago











  • Would you also be rewriting the Bonus Action section of the rules that says that bonus action must be taken on your turn? Because, as written, your rule would still work with that technically but would force bonus action to be triggered on the turn you ready them. If that is not your intent you should either add something to the modification that supersedes the general rule for Bonus Actions or change the general rule for bonus actions as an addition to this change.
    – Rubiksmoose
    1 hour ago












  • 2




    @NautArch This question is intended to examine any Bonus Action, with Misty Step provided as a "This use seems reasonable but is disallowed by RAW" example. I don't think it's necessary for an answer to consider every possible interaction, just to disprove my null hypothesis, which assumes there are no exploitable interactions.
    – Xirema
    2 hours ago











  • Would you also be rewriting the Bonus Action section of the rules that says that bonus action must be taken on your turn? Because, as written, your rule would still work with that technically but would force bonus action to be triggered on the turn you ready them. If that is not your intent you should either add something to the modification that supersedes the general rule for Bonus Actions or change the general rule for bonus actions as an addition to this change.
    – Rubiksmoose
    1 hour ago







2




2




@NautArch This question is intended to examine any Bonus Action, with Misty Step provided as a "This use seems reasonable but is disallowed by RAW" example. I don't think it's necessary for an answer to consider every possible interaction, just to disprove my null hypothesis, which assumes there are no exploitable interactions.
– Xirema
2 hours ago





@NautArch This question is intended to examine any Bonus Action, with Misty Step provided as a "This use seems reasonable but is disallowed by RAW" example. I don't think it's necessary for an answer to consider every possible interaction, just to disprove my null hypothesis, which assumes there are no exploitable interactions.
– Xirema
2 hours ago













Would you also be rewriting the Bonus Action section of the rules that says that bonus action must be taken on your turn? Because, as written, your rule would still work with that technically but would force bonus action to be triggered on the turn you ready them. If that is not your intent you should either add something to the modification that supersedes the general rule for Bonus Actions or change the general rule for bonus actions as an addition to this change.
– Rubiksmoose
1 hour ago




Would you also be rewriting the Bonus Action section of the rules that says that bonus action must be taken on your turn? Because, as written, your rule would still work with that technically but would force bonus action to be triggered on the turn you ready them. If that is not your intent you should either add something to the modification that supersedes the general rule for Bonus Actions or change the general rule for bonus actions as an addition to this change.
– Rubiksmoose
1 hour ago










1 Answer
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up vote
4
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It Shouldn't Unbalance Anything... for the moment



For the purpose of simplicity, I'll be mainly restricting my answer to bonus action spells here. This is both because many bonus actions require an action to be done the same turn (such as Two Weapon Fighting), or are unlikely to be particularly useful outside of your turn (such as Cunning Action).



There are two major restrictions on bonus action spells in DnD-5e.



  1. You cannot Ready a bonus action spell.


  2. If you cast a bonus action spell during a turn, other spells you cast must be cantrips with casting times of one action.


With a Paladin character, there's very little chance that the second restriction will come into play often. But with other classes (especially Sorcerers), the second restriction comes into play quite often.



The major concern I'd have with "readying" a bonus action is that it might be used to circumvent the second restriction: but your proposed method will help reduce that worry considerably.



Why it is balanced... for the moment



1. Your Action is still restricted (by being used up)



Normally, casting a bonus action spell limits the use of your Action. Your proposed method (using up an Action, and bonus action to Ready the spell, and a Reaction to release it) similarly guarantees that action economy is maintained. Granted, a Fighter's Action Surge could permit you to still cast a leveled spell on the same round you'd readied a bonus action, but Action Surge can similarly permit for two leveled spells being cast in the same round (without costing a bonus action and reaction).



2. "Readying" a bonus action spell will be inefficient and risky



Many of the bonus action spells available (Magic Weapon, Shillelagh, the Smite spells) are designed to make your Action more effective in combat: to enhance something else you do on your turn. The ability to do these things outside of your turn will not enhance their effectiveness. Other ones (like Misty Step) could potentially be quite useful on turns other than your own: but often they'd be just as useful during your turn. If you suspect you might need to teleport somewhere to cut off an enemy's retreat, you could teleport there ahead of time, and restrict that enemy's options. The fact that you'd need to spend the spell slot of the bonus action spell to Ready it, and maintain concentration on it until it is released, also makes this strategy one which is inherently risky : if you're mistaken, and the Readied spell never gets its trigger (the enemy doesn't run to the bridge, but rather jumps over the gorge), you'll never cast the spell, and will lose the spell slot.



There could be some niche situations where you'd want to ready a bonus action spell (e.g. you're worried the enemy might just cut the rope bridge while you're on it, and want to wait until they're on it too), but mostly it will be a highly inefficient use of an Action, Bonus Action, and Reaction. Especially since I can't see any examples of Bonus Action spells which would be considerably more devastating if taken on another creatures' turn... for the moment.



Why I keep saying "for the moment"



Any answer which posits how the rules will change in the future is suspect, as is any answer which posits designer thinking on a topic without quoting the designers. Unfortunately, I'm about to do both, so take it with a grain of salt.



The bonus-action rules on spellcasting are a protection against future problematic interactions. If the game designers think up a cool new spell, but are concerned with how it might interact with non-cantrip spells (cast by the same caster), or concerned how it might be overpowered if used on another creature's turn, they can circumvent these potential problems by giving it a casting time of a bonus action. As such, it's entirely possible that a spell will come into being later which makes this homebrewed rule highly unbalanced and problematic.



By allowing bonus actions to be "readied," we may be removing a barrier to abuse the game designers are counting on down the road. Still, this is a "slippery slope" argument, plain and simple, and shouldn't prevent you, now, from making this change if you so desire (and are the DM/ have your DM's approval). That being said, if you do make this change, be stay vigilant for new bonus-action spells in further material: and be prepared to alter this rule further if it becomes problematic.






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    1 Answer
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    1 Answer
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    up vote
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    down vote













    It Shouldn't Unbalance Anything... for the moment



    For the purpose of simplicity, I'll be mainly restricting my answer to bonus action spells here. This is both because many bonus actions require an action to be done the same turn (such as Two Weapon Fighting), or are unlikely to be particularly useful outside of your turn (such as Cunning Action).



    There are two major restrictions on bonus action spells in DnD-5e.



    1. You cannot Ready a bonus action spell.


    2. If you cast a bonus action spell during a turn, other spells you cast must be cantrips with casting times of one action.


    With a Paladin character, there's very little chance that the second restriction will come into play often. But with other classes (especially Sorcerers), the second restriction comes into play quite often.



    The major concern I'd have with "readying" a bonus action is that it might be used to circumvent the second restriction: but your proposed method will help reduce that worry considerably.



    Why it is balanced... for the moment



    1. Your Action is still restricted (by being used up)



    Normally, casting a bonus action spell limits the use of your Action. Your proposed method (using up an Action, and bonus action to Ready the spell, and a Reaction to release it) similarly guarantees that action economy is maintained. Granted, a Fighter's Action Surge could permit you to still cast a leveled spell on the same round you'd readied a bonus action, but Action Surge can similarly permit for two leveled spells being cast in the same round (without costing a bonus action and reaction).



    2. "Readying" a bonus action spell will be inefficient and risky



    Many of the bonus action spells available (Magic Weapon, Shillelagh, the Smite spells) are designed to make your Action more effective in combat: to enhance something else you do on your turn. The ability to do these things outside of your turn will not enhance their effectiveness. Other ones (like Misty Step) could potentially be quite useful on turns other than your own: but often they'd be just as useful during your turn. If you suspect you might need to teleport somewhere to cut off an enemy's retreat, you could teleport there ahead of time, and restrict that enemy's options. The fact that you'd need to spend the spell slot of the bonus action spell to Ready it, and maintain concentration on it until it is released, also makes this strategy one which is inherently risky : if you're mistaken, and the Readied spell never gets its trigger (the enemy doesn't run to the bridge, but rather jumps over the gorge), you'll never cast the spell, and will lose the spell slot.



    There could be some niche situations where you'd want to ready a bonus action spell (e.g. you're worried the enemy might just cut the rope bridge while you're on it, and want to wait until they're on it too), but mostly it will be a highly inefficient use of an Action, Bonus Action, and Reaction. Especially since I can't see any examples of Bonus Action spells which would be considerably more devastating if taken on another creatures' turn... for the moment.



    Why I keep saying "for the moment"



    Any answer which posits how the rules will change in the future is suspect, as is any answer which posits designer thinking on a topic without quoting the designers. Unfortunately, I'm about to do both, so take it with a grain of salt.



    The bonus-action rules on spellcasting are a protection against future problematic interactions. If the game designers think up a cool new spell, but are concerned with how it might interact with non-cantrip spells (cast by the same caster), or concerned how it might be overpowered if used on another creature's turn, they can circumvent these potential problems by giving it a casting time of a bonus action. As such, it's entirely possible that a spell will come into being later which makes this homebrewed rule highly unbalanced and problematic.



    By allowing bonus actions to be "readied," we may be removing a barrier to abuse the game designers are counting on down the road. Still, this is a "slippery slope" argument, plain and simple, and shouldn't prevent you, now, from making this change if you so desire (and are the DM/ have your DM's approval). That being said, if you do make this change, be stay vigilant for new bonus-action spells in further material: and be prepared to alter this rule further if it becomes problematic.






    share|improve this answer


























      up vote
      4
      down vote













      It Shouldn't Unbalance Anything... for the moment



      For the purpose of simplicity, I'll be mainly restricting my answer to bonus action spells here. This is both because many bonus actions require an action to be done the same turn (such as Two Weapon Fighting), or are unlikely to be particularly useful outside of your turn (such as Cunning Action).



      There are two major restrictions on bonus action spells in DnD-5e.



      1. You cannot Ready a bonus action spell.


      2. If you cast a bonus action spell during a turn, other spells you cast must be cantrips with casting times of one action.


      With a Paladin character, there's very little chance that the second restriction will come into play often. But with other classes (especially Sorcerers), the second restriction comes into play quite often.



      The major concern I'd have with "readying" a bonus action is that it might be used to circumvent the second restriction: but your proposed method will help reduce that worry considerably.



      Why it is balanced... for the moment



      1. Your Action is still restricted (by being used up)



      Normally, casting a bonus action spell limits the use of your Action. Your proposed method (using up an Action, and bonus action to Ready the spell, and a Reaction to release it) similarly guarantees that action economy is maintained. Granted, a Fighter's Action Surge could permit you to still cast a leveled spell on the same round you'd readied a bonus action, but Action Surge can similarly permit for two leveled spells being cast in the same round (without costing a bonus action and reaction).



      2. "Readying" a bonus action spell will be inefficient and risky



      Many of the bonus action spells available (Magic Weapon, Shillelagh, the Smite spells) are designed to make your Action more effective in combat: to enhance something else you do on your turn. The ability to do these things outside of your turn will not enhance their effectiveness. Other ones (like Misty Step) could potentially be quite useful on turns other than your own: but often they'd be just as useful during your turn. If you suspect you might need to teleport somewhere to cut off an enemy's retreat, you could teleport there ahead of time, and restrict that enemy's options. The fact that you'd need to spend the spell slot of the bonus action spell to Ready it, and maintain concentration on it until it is released, also makes this strategy one which is inherently risky : if you're mistaken, and the Readied spell never gets its trigger (the enemy doesn't run to the bridge, but rather jumps over the gorge), you'll never cast the spell, and will lose the spell slot.



      There could be some niche situations where you'd want to ready a bonus action spell (e.g. you're worried the enemy might just cut the rope bridge while you're on it, and want to wait until they're on it too), but mostly it will be a highly inefficient use of an Action, Bonus Action, and Reaction. Especially since I can't see any examples of Bonus Action spells which would be considerably more devastating if taken on another creatures' turn... for the moment.



      Why I keep saying "for the moment"



      Any answer which posits how the rules will change in the future is suspect, as is any answer which posits designer thinking on a topic without quoting the designers. Unfortunately, I'm about to do both, so take it with a grain of salt.



      The bonus-action rules on spellcasting are a protection against future problematic interactions. If the game designers think up a cool new spell, but are concerned with how it might interact with non-cantrip spells (cast by the same caster), or concerned how it might be overpowered if used on another creature's turn, they can circumvent these potential problems by giving it a casting time of a bonus action. As such, it's entirely possible that a spell will come into being later which makes this homebrewed rule highly unbalanced and problematic.



      By allowing bonus actions to be "readied," we may be removing a barrier to abuse the game designers are counting on down the road. Still, this is a "slippery slope" argument, plain and simple, and shouldn't prevent you, now, from making this change if you so desire (and are the DM/ have your DM's approval). That being said, if you do make this change, be stay vigilant for new bonus-action spells in further material: and be prepared to alter this rule further if it becomes problematic.






      share|improve this answer
























        up vote
        4
        down vote










        up vote
        4
        down vote









        It Shouldn't Unbalance Anything... for the moment



        For the purpose of simplicity, I'll be mainly restricting my answer to bonus action spells here. This is both because many bonus actions require an action to be done the same turn (such as Two Weapon Fighting), or are unlikely to be particularly useful outside of your turn (such as Cunning Action).



        There are two major restrictions on bonus action spells in DnD-5e.



        1. You cannot Ready a bonus action spell.


        2. If you cast a bonus action spell during a turn, other spells you cast must be cantrips with casting times of one action.


        With a Paladin character, there's very little chance that the second restriction will come into play often. But with other classes (especially Sorcerers), the second restriction comes into play quite often.



        The major concern I'd have with "readying" a bonus action is that it might be used to circumvent the second restriction: but your proposed method will help reduce that worry considerably.



        Why it is balanced... for the moment



        1. Your Action is still restricted (by being used up)



        Normally, casting a bonus action spell limits the use of your Action. Your proposed method (using up an Action, and bonus action to Ready the spell, and a Reaction to release it) similarly guarantees that action economy is maintained. Granted, a Fighter's Action Surge could permit you to still cast a leveled spell on the same round you'd readied a bonus action, but Action Surge can similarly permit for two leveled spells being cast in the same round (without costing a bonus action and reaction).



        2. "Readying" a bonus action spell will be inefficient and risky



        Many of the bonus action spells available (Magic Weapon, Shillelagh, the Smite spells) are designed to make your Action more effective in combat: to enhance something else you do on your turn. The ability to do these things outside of your turn will not enhance their effectiveness. Other ones (like Misty Step) could potentially be quite useful on turns other than your own: but often they'd be just as useful during your turn. If you suspect you might need to teleport somewhere to cut off an enemy's retreat, you could teleport there ahead of time, and restrict that enemy's options. The fact that you'd need to spend the spell slot of the bonus action spell to Ready it, and maintain concentration on it until it is released, also makes this strategy one which is inherently risky : if you're mistaken, and the Readied spell never gets its trigger (the enemy doesn't run to the bridge, but rather jumps over the gorge), you'll never cast the spell, and will lose the spell slot.



        There could be some niche situations where you'd want to ready a bonus action spell (e.g. you're worried the enemy might just cut the rope bridge while you're on it, and want to wait until they're on it too), but mostly it will be a highly inefficient use of an Action, Bonus Action, and Reaction. Especially since I can't see any examples of Bonus Action spells which would be considerably more devastating if taken on another creatures' turn... for the moment.



        Why I keep saying "for the moment"



        Any answer which posits how the rules will change in the future is suspect, as is any answer which posits designer thinking on a topic without quoting the designers. Unfortunately, I'm about to do both, so take it with a grain of salt.



        The bonus-action rules on spellcasting are a protection against future problematic interactions. If the game designers think up a cool new spell, but are concerned with how it might interact with non-cantrip spells (cast by the same caster), or concerned how it might be overpowered if used on another creature's turn, they can circumvent these potential problems by giving it a casting time of a bonus action. As such, it's entirely possible that a spell will come into being later which makes this homebrewed rule highly unbalanced and problematic.



        By allowing bonus actions to be "readied," we may be removing a barrier to abuse the game designers are counting on down the road. Still, this is a "slippery slope" argument, plain and simple, and shouldn't prevent you, now, from making this change if you so desire (and are the DM/ have your DM's approval). That being said, if you do make this change, be stay vigilant for new bonus-action spells in further material: and be prepared to alter this rule further if it becomes problematic.






        share|improve this answer














        It Shouldn't Unbalance Anything... for the moment



        For the purpose of simplicity, I'll be mainly restricting my answer to bonus action spells here. This is both because many bonus actions require an action to be done the same turn (such as Two Weapon Fighting), or are unlikely to be particularly useful outside of your turn (such as Cunning Action).



        There are two major restrictions on bonus action spells in DnD-5e.



        1. You cannot Ready a bonus action spell.


        2. If you cast a bonus action spell during a turn, other spells you cast must be cantrips with casting times of one action.


        With a Paladin character, there's very little chance that the second restriction will come into play often. But with other classes (especially Sorcerers), the second restriction comes into play quite often.



        The major concern I'd have with "readying" a bonus action is that it might be used to circumvent the second restriction: but your proposed method will help reduce that worry considerably.



        Why it is balanced... for the moment



        1. Your Action is still restricted (by being used up)



        Normally, casting a bonus action spell limits the use of your Action. Your proposed method (using up an Action, and bonus action to Ready the spell, and a Reaction to release it) similarly guarantees that action economy is maintained. Granted, a Fighter's Action Surge could permit you to still cast a leveled spell on the same round you'd readied a bonus action, but Action Surge can similarly permit for two leveled spells being cast in the same round (without costing a bonus action and reaction).



        2. "Readying" a bonus action spell will be inefficient and risky



        Many of the bonus action spells available (Magic Weapon, Shillelagh, the Smite spells) are designed to make your Action more effective in combat: to enhance something else you do on your turn. The ability to do these things outside of your turn will not enhance their effectiveness. Other ones (like Misty Step) could potentially be quite useful on turns other than your own: but often they'd be just as useful during your turn. If you suspect you might need to teleport somewhere to cut off an enemy's retreat, you could teleport there ahead of time, and restrict that enemy's options. The fact that you'd need to spend the spell slot of the bonus action spell to Ready it, and maintain concentration on it until it is released, also makes this strategy one which is inherently risky : if you're mistaken, and the Readied spell never gets its trigger (the enemy doesn't run to the bridge, but rather jumps over the gorge), you'll never cast the spell, and will lose the spell slot.



        There could be some niche situations where you'd want to ready a bonus action spell (e.g. you're worried the enemy might just cut the rope bridge while you're on it, and want to wait until they're on it too), but mostly it will be a highly inefficient use of an Action, Bonus Action, and Reaction. Especially since I can't see any examples of Bonus Action spells which would be considerably more devastating if taken on another creatures' turn... for the moment.



        Why I keep saying "for the moment"



        Any answer which posits how the rules will change in the future is suspect, as is any answer which posits designer thinking on a topic without quoting the designers. Unfortunately, I'm about to do both, so take it with a grain of salt.



        The bonus-action rules on spellcasting are a protection against future problematic interactions. If the game designers think up a cool new spell, but are concerned with how it might interact with non-cantrip spells (cast by the same caster), or concerned how it might be overpowered if used on another creature's turn, they can circumvent these potential problems by giving it a casting time of a bonus action. As such, it's entirely possible that a spell will come into being later which makes this homebrewed rule highly unbalanced and problematic.



        By allowing bonus actions to be "readied," we may be removing a barrier to abuse the game designers are counting on down the road. Still, this is a "slippery slope" argument, plain and simple, and shouldn't prevent you, now, from making this change if you so desire (and are the DM/ have your DM's approval). That being said, if you do make this change, be stay vigilant for new bonus-action spells in further material: and be prepared to alter this rule further if it becomes problematic.







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        edited 22 mins ago

























        answered 30 mins ago









        Gandalfmeansme

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