Frost Wyrm (advancement)

Frost Wyrm is a Class Hall advancement that can be bought for Acherus: The Ebon Hold. It makes Winter Payne appear, who can summon giant frost wyrms.

Description
Allows you to place a work order for the Frost Crux, used to call down a Frost Wyrm to instantly complete a non-elite World Quest on your map once every 18 hours.