pf2e.fyi
From Pathfinder Lost Omens Impossible Lands, which isn't enabled.

Perfect Resistance

FEAT 8
ARCHETYPE
Archetype Student of Perfection
Prerequisites Student of Perfection Dedication

You gain resistance equal to half your level to all damage from effects with the appropriate trait for your School of Perfection: fire for Unblinking Flame, water for Unbreaking Waves, air for Unfolding Wind, and earth for Untwisting Iron. After using a Student of Perfection ki spell, the resistance increases to be equal to your level for 1 round.

Effect: Perfect Resistance

Pathfinder Lost Omens Impossible LandsOGL