From Pathfinder Impossible Magic, which isn't enabled.

Rune Ward

FEAT 1

Activity reaction

Trigger You are targeted by a spell.

Requirements You are trained in the skill associated with the tradition of the triggering spell (Arcana for arcane, Nature for primal, Occultism for occult, and Religion for divine).

You quickly sketch a rune in the air to gain a modicum of protection against the triggering magic. You gain a +1 circumstance bonus to your saving throw and AC against the spell.

Pathfinder Impossible MagicORC