This is a guide on how to complete the challenge, Destroy Ice Brutes, from the Ice Storm Challenges.
To complete this challenge, start of by locating an Ice Fiends spawn pillar anywhere on the map. To make it easier, try to find one at the edge of the map where few players are.
Once you’ve located a pillar, simply destroy 100 Ice Brutes, which are the bulky version of the Ice Zombies. An Ice Brute looks like the following