Icebane Helm

To obtain this helmet, you must kill 250 zombies using the fire from the Flammenfalle trap, and kill 50 Frost Zombie enemies while using the heat buff from the Flammenfalle trap, activated by interacting with the trap itself instead of the switch. Once both of these requirements have been met, the final zombie kill from the last requirement will drop the Icebane Helm for you to pick up, granting you complete cold immunity, and a frosty slide.

You can always place this helm down in the Blodheim Hall where Vulture Aid is located, to share with other players or swap to another helm.