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PFS StandardEffortless Concentration [free-action] Feat 16

Legacy Content

Bard Druid Sorcerer Summoner Witch Wizard 
Source Secrets of Magic pg. 72 2.0, Core Rulebook pg. 103 4.0, Advanced Player's Guide pg. 105 2.0
Trigger Your turn begins.

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.