Eternal Winter Chill

Vendor

Base value 20s (carries a vendor price; bought or sold as a reagent).

Crafting

Not craftable.

Gathering

Not a gathered material.

Dropped by

Arkanis the Destroyer	level 50
Ancient Titan Musperosa	level 45
Ancient Titan Musperosa	level 50
Dahuta	level 50
Dahuta	level 50

Note: the monster level tells you the zone tier where it is found; exact spawn coordinates are not published in the game data. See the World Atlas for zone level bands and Dungeons & Raids for instanced drops.