pf2e.fyi
From Pathfinder Kingmaker, which isn't enabled.

Fey Luck

REACTION
FORTUNEPRIMAL
Activity reaction
Trigger You fail or critically fail a saving throw.
Frequency once

The luck granted to you after freeing the sprites from their cruel cages saves you from an undesirable fate. Adjust a failed saving throw to a success, or a critically failed saving throw to a failed saving throw.

Pathfinder KingmakerOGL