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

Unblinking Flame Aura

FOCUS 5

Cast

Duration 1 minute

You focus your sight inside and call on your inner fire to grant you warmth, steady your vision, and soothe your body. You recover 15 Hit Points. For the duration, you gain a +2 status bonus on Perception checks and resistance 10 to cold.

Spell Effect: Unblinking Flame Aura

Heightened (+1) You recover an additional 3 Hit Points, and the resistance to cold increases by 2.

Pathfinder Lost Omens Impossible LandsOGL