Feat: Mystery Conduit
The power of your mystery enables you access to myriad magic. If your next action is to Cast a Spell of 5th rank or lower that has no duration, you do not expend a spell slot.
Pathfinder 2e Database
The power of your mystery enables you access to myriad magic. If your next action is to Cast a Spell of 5th rank or lower that has no duration, you do not expend a spell slot.