Urok Doomhowl

Urok's tribute pile
Beyond the spider tunnels, clear the ogres around the tribute pile before using Omokk's Head and the Roughshod Pike. Starting the tribute commits the group to successive ogre arrivals before Urok Doomhowl appears. Regroup at the cleared pile after each arrival instead of following fleeing enemies into uncleared passages.

Urok Doomhowl
Elite HumanoidUrok is a summoned ogre-event finish whose Intimidating Roar can remove healing and scatter the group while his melee attacks continue.
Abilities

Intimidating Roar
Roars at an enemy, paralyzing it with terror for 8 seconds. and causing all other nearby enemies to flee in fear.
Clear the space around the tribute before summoning; the roar terrifies its target and sends nearby allies fleeing, so keep the healer away from Urok when possible.

Strike
Strikes at an enemy, inflicting increased melee damage.
Keep a defensive available for Strike while Intimidating Roar has interrupted the group's normal healing.
Tank- Collect Urok at the cleared tribute area rather than chasing the last ogre into a passage. Keep mitigation for his Strike when Intimidating Roar disables the healer.
Healer- Stand back from Urok's roar and keep the tank healthy before it lands. Re-establish range after a fear without running through uncleared ogres.
Damage- During the summoning arrivals, stop the Urok Ogre Magus from granting Bloodlust. Regroup after Intimidating Roar before resuming attacks on Urok.