Unleash the Yeti

First make sure you are in the Blizzard Map. Use :mapvote Blizzard to do this. Every five minutes or so an Eternal Fire Orb spawns somewhere in the map. You must pick up this orb and plug it in a Yeti socket (just touch it with the orb). Finding the orb can be the difficult part, so it helps to have either the Assassin class for fast running or the Flying Sword (beware of magic missiles though). If your team gets 3 of these then anyone who put a orb in the socket gets the badge and the Yeti spawns which will likely destroy the other team.