Houndmaster Grebmar

Detention Block and Halls of the Law
Start with the prison branch for Gerstahn and the cell key, or follow the halls toward the arena. Pull Gerstahn into cleared space before Psychic Scream can send players into another pack. Catch Roccor away from other patrols, and clear the hounds on the approach to Grebmar's den beneath the arena.

Houndmaster Grebmar
Elite HumanoidGrebmar's Bloodlust raises melee pressure while Pummel punishes a healer who stands within his reach.
Abilities

Demoralizing Shout
Demoralizing Shout reduces nearby melee attack power; avoid letting the weakened damage prolong his Bloodlust pressure.

Pummel
Pummels an enemy for 45 damage and interrupts the spell being cast for 5 seconds.
Keep healing casts outside Pummel's reach so the healer's spell school is not interrupted.

Bloodlust
Increases an ally's attack speed by 30% for 30 seconds.
Prepare tank mitigation when Bloodlust accelerates his attacks.
Tank- Clear the hound approach before pulling Grebmar. Keep defensive resources for Bloodlust rather than beginning his accelerated attacks with a fresh hound pack on you.
Healer- Heal from outside Pummel's reach and prepare for faster incoming melee attacks during Bloodlust.
Damage- Finish the hounds before engaging Grebmar, then focus him so Bloodlust and Demoralizing Shout do not turn the den into a prolonged fight.