Does effortless concentration trigger reactions that trigger on concentrate actions?


Rules Discussion


Just reading through feats and came upon effortless concentration again and realized the fear itself doesn't have the concentration trait. Text if the feat;

You maintain a spell with hardly a thought. You immediately gain the effects of the Sustain a Spell action, allowing you to extend the duration of one of your active class spells.

So what do people think? I had always run it as if it had the concentration trait, but looking at it I'm not so sure.


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You are right that it does not.

If it was worded like "you gain a free action to Sustain a Spell" then it would, since you would be doing a concentrate action (sustain a spell) even if you were doing it as a free action.

But with Effortless concentration, as written, you simply gain the effects and never perform the actual action which has the traits.


That's neat. It won't usually matter and you probably won't remember the one time it does, but it is neat.


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The only time I can think that it would matter is when going up against a Thaumaturge with Weapon Implement. Implement's Interruption triggers on concentrate actions.

This also feels like an RAI/RAW mismatch type of case. With the Subordinate Actions rules having subordinate actions have their normal traits, the intent seems to be having Sustain a Spell as the simple action in the free action activity of Effortless Concentration.

I'll agree that the RAW doesn't actually list it that way. But all indications point to that being the intent - from the name of the activity, to the subordinate actions rules, to listing out the Sustain a Spell action by name.


There are a few reactions which trigger off concentrate, particularly in monsters. There's even few which don't also trigger on manipulate.

Thing is, the action you saved on effortless concentration will probably be spent on a spell that has the concentration trait, which further narrows when this will matter. Maybe you can use the action to step out of reach, though.


It's mostly at high levels where monsters have aoos that trigger on concentrate actions, and sometimes disrupt them which ends the spell. So it definitely could matter


Gaulin wrote:
It's mostly at high levels where monsters have aoos that trigger on concentrate actions, and sometimes disrupt them which ends the spell. So it definitely could matter

Yeah, that's what I was thinking, but at higher levels monsters threaten larger areas and if you're casting a spell within their reach anyway this won't matter. Actually, it could be worse if the reactions disrupt spells but not other actions, or even if it disrupts all concentrate actions. You'd want to bait the reaction with the less important action, which probably means your concentrate instead of the two action spell.

Verdant Wheel

The Concentration being done is... Effortless!


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Pathfinder Rulebook Subscriber
Finoan wrote:
But all indications point to that being the intent - from the name of the activity, to the subordinate actions rules, to listing out the Sustain a Spell action by name.

On the other hand, the ability very notably uses different (and otherwise both peculiar and needlessly verbose) phrasing than pretty much every other ability in the game with a subordinate action.

That seems like a pretty strong indication too, and I'm not sure it's reasonable to dismiss that out of hand.


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Finoan wrote:

The only time I can think that it would matter is when going up against a Thaumaturge with Weapon Implement. Implement's Interruption triggers on concentrate actions.

This also feels like an RAI/RAW mismatch type of case. With the Subordinate Actions rules having subordinate actions have their normal traits, the intent seems to be having Sustain a Spell as the simple action in the free action activity of Effortless Concentration.

I'll agree that the RAW doesn't actually list it that way. But all indications point to that being the intent - from the name of the activity, to the subordinate actions rules, to listing out the Sustain a Spell action by name.

Lesser Death and Grim Reaper have Lurking Death that triggers with concentration (and manipulate and move too).

Brine Dragons have concentration triggered reactions too.
Herecite of Zevgavizeb has a reaction specifically trigger by Sustain a Spell when used to sustain a divine spell but due it triggers the by action name I don't think that it will trigger vs Effortless Concentration.
Jabberwocks also have an anti-concentration reaction.
And off-corse the fighter's Disruptive Stance that change AoO RS to trigger with concentration too.

About the OP question Effortless Concentration don't trigger anti-concentration reactions due it not uses Sustain a Spell as subordinated action just uses its effects.

Source Secrets of Magic pg. 72 1.1, Core Rulebook pg. 103 4.0, Advanced Player's Guide pg. 105 2.0 - Effortless Concentration wrote:
You maintain a spell with hardly a thought. You immediately gain the effects of the Sustain a Spell action, allowing you to extend the duration of one of your active class spells.

In my opinion, this was on purpose to avoid inheriting the concentration trait and requirements. It's effortlessly at all.

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