From Pathfinder Lost Omens Impossible Lands, which isn't enabled.

Unbreaking Wave Vapor

FOCUS 5

Cast

Trigger You're targeted by an attack made by an attacker you can see.

You're Concealed against the triggering attack and gain a +2 circumstance bonus to AC against it. After the triggering attack is complete, you can Step if the triggering attack hit or Step twice if the triggering attack missed.

Spell Effect: Unbreaking Wave Vapor

Pathfinder Lost Omens Impossible LandsOGL