You have a freezing core that continuously draws heat from its surroundings. If your core is ever lost or damaged, you can repair or replace it over the course of a Long Rest using materials worth 100+ GP. While you are carrying your core, you gain the following benefits.
Cold Resistance
You have Resistance to Cold damage.
Frozen Weapons
When you deal damage with a weapon, it can deal your choice of Cold damage or its normal damage type.
Frostbite
Whenever you deal Cold damage and roll a 1 on any damage die, you treat that result as the highest number on that die instead.