Looking at other questions about casting spells as a bonus action has left me trying to keep a lot of information in my head about whether a given combination of spells is legal according to the official 5th edition spellcasting rules.

So I'd like to consolidate all these rules into a single easily accessible table, containing all the possible combinations of spells that could possibly be cast in a single turn, and hopefully create an easy reference for future use. But I'm not certain about how some of these combinations should be treated.

Based on the second question I linked, the ordering doesn't matter, so I've simplified the chart to ignore order of these actions, and only focus on what actions are being taken. But if I'm mistaken (i.e. the answer provided to that question was wrong) then this table will need adjusting.

\begin{array}{|l|l|l|l|} \hline Action & Bonus\ Action & Action\ Surge & LEGAL? \\ \hline Non-Cantrip & & & Yes \\ \hline Cantrip & & & Yes \\ \hline & Non-Cantrip & & Yes \\ \hline & Cantrip & & Yes \\ \hline Non-Cantrip & Cantrip & & No \\ \hline Cantrip & Non-Cantrip & & Yes \\ \hline Non-Cantrip & Non-Cantrip & & No \\ \hline Cantrip & Cantrip & & Yes \\ \hline Non-Cantrip & & Cantrip & Yes \\ \hline Non-Cantrip & & Non-Cantrip & ?Yes? \\ \hline Cantrip & & Non-Cantrip & ?Yes? \\ \hline Cantrip & & Cantrip & Yes \\ \hline Cantrip & Non-Cantrip & Non-Cantrip & ?No? \\ \hline Non-Cantrip & Cantrip & Non-Cantrip & ?No? \\ \hline Non-Cantrip & Non-Cantrip & Non-Cantrip & ?No? \\ \hline Non-Cantrip & Non-Cantrip & Cantrip & ?No? \\ \hline Cantrip & Non-Cantrip & Cantrip & ?Yes? \\ \hline Non-Cantrip & Cantrip & Cantrip & ?No? \\ \hline Cantrip & Cantrip & Non-Cantrip & ?No? \\ \hline Cantrip & Cantrip & Cantrip & Yes \\ \hline \end{array}

Is this table (Column 4 in particular) correct?

The core issue for me is that it's not clear to me how Action Surges interact with the spellcasting rules, hence the question marks listed there. It seems like an Action Surge might permit 2 leveled spells to be cast in a turn, unless a Bonus Action is used to cast a spell, in which case this is no longer permitted. If this is correct, then my table above should be correct, minus the question marks. But I need that validated.

  • 4
    The table would be more helpful as an answer – András Oct 16 at 17:36
up vote 16 down vote accepted

The table is entirely correct

Action Surge does not interact in any way with the bonus action spell rule (other than being limited in the same way as other spells if you use a bonus action spell). The bonus action rule is only used for spells with a bonus action casting time.

You can’t cast another spell during the same turn [that you would cast a bonus action spell], except for a cantrip with a casting time of 1 action.

This is also further explained in one of the answers in the official rules clarification document Sage Advice Compendium which says:

If you cast a spell...with a bonus action, you can cast another spell with your action, but that other spell must be a cantrip. Keep in mind that this particular limit is specific to spells that use a bonus action. For instance, if you cast a second spell using Action Surge, you aren’t limited to casting a cantrip with it.

Basically, if you cast (or will cast) a bonus action spell (cantrip or non-cantrip) in a turn, no other non-cantrip spells (even ones using the action from action surge) can be cast.

  • 4
    The last sentence captures the rule perfectly. No need for a big table or long discussions. It's a simple rule to follow. – GreySage Oct 16 at 16:55
  • I don't believe the table (and therefore the header of the answer) is correct. He shows a cantrip and non-cantrip as illegal in row 5 and the third from the bottom would also be legal. GreySage's comment is a much easier way to track legality anyway. – rpeinhardt Oct 16 at 17:31
  • 3
    @rpeinhardt Those situations are accurate. If you cast a bonus action cantrip, you cannot cast a non-cantrip with your action. No matter what type of bonus action spell is cast, all other spells in that turn must be cantrips. – David Coffron Oct 16 at 17:32
  • 1
    @Slagmoth oh... will fix xD – David Coffron Oct 16 at 20:06
  • That's one of the weirder rules. You can cast two action non-cantrips with action surge but not a bonus action and an action non-cantrip as far as I understand – OganM Oct 16 at 21:20

Your Answer

 

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.