History of Frostbite

Frostbite is a debuff in the Deep Stone Crypt raid's opening blizzard section on Europa. Guardians gain a Frostbite stack for each second spent outside a shelter, and reaching ten stacks kills the player.

To clear it, reach the next shelter. Shelters are heat bubbles scattered along the route; standing in one removes the stacks and grants the temporary "Shelter from the Storm" buff. Lamp posts across the area point the correct direction of travel, and a series of Lamps and Web Mines mark the route through the blizzard.

Fallen defend the later shelters. Dark Council Guards armed with Molten Welders spawn alongside other Fallen reinforcements, and the final bubble is guarded by Fallen Brigs. Clearing every enemy in a shelter turns it into a checkpoint, so Guardians who clear shelters as they go avoid respawning at the first one.