Gatecrusher

Gatecrusher is Kruntog's demolisher found on Theramore Isle in Dustwallow Marsh during Theramore's Fall.

Abilities

 * Demolisher Shot - Deals 350 Fire damage and stuns enemies within 6 yards for 1 sec.
 * War Engine - The War Engine is immune to stun, movement impairing effects, and loss of control.
 * War Engine's Sights - Causes an enemy to fixate upon the caster. While the caster is fixated upon the target, the caster is very reluctant to attack anything else.

Strategy
This is a simple boss. It requires no tank since it uses a fixate mechanic, and will merely chase whichever player it has in its sights. It will fire its catapult, the impact location marked on the ground before the projectile hits. Avoid the Gatecrusher and its hail of explosives, and you'll have an easy achievement.

Achievement
No Tank You (Alliance)