Pathfinder: The Red Crusade
Potion of Ice Blood
Casting Time: 1 Standard Action
Target: Creature that swallows potion.
Duration: 24 hours.
Academic: Alchemy CL 2.
Whomever drinks this potion gains Energy Immunity (Cold) for 24 hours. A creature with energy immunity never takes damage from that energy type.
First discovered when from the corpse of a Frostclaw Hag.