Tendris WarpwoodTendris Warpwood is the first boss you encounter in Dire Maul West. Be sure that you have defeated all of the wandering Ancients who patrol the main courtyard before engaging Tendris, as he will summon them all to his aid upon engagement.
Magister KalendrisMagister Kalendris is a ghostly Shadow Priest. Utilize Prayer of Shadow Protection and interrupt his Mind Blast and 22919. Dominate Mind will affect one player at a time.
Tsu'zeeTsu'zee is a rare boss who spawns near Magister Kalendris' area at the bottom of the ramps.
Illyanna RavenoakIllyanna Ravenoak is located above Tendris Warpwood's area and accessed from the ramps in the Court of the Highborne. The boss is accompanied by her pet bear, Ferra.
The bosses ranged abilities can be nullified simply by standing in melee range. Watch out for Immolation Trap.
Immol'tharImmol'thar is a beast trapped beneath the West wing of Dire Maul.
The boss has a few abilities, but the most important to be aware of are the adds that will be summoned around the room which need to be handled.
The boss will also teleport players to the middle of the room, causing a threat drop on that player. If this is the tank, stop all DPS until threat is reestablished.
Immol'thar has an early enrage at 50%, so prepare cooldowns for the second half of the fight.
Prince TortheldrinPrince Tortheldrin is the final boss of Dire Maul West and is located in the Athenaeum, through a small tunnel from Immol'thar's prison. Note that if you enter from Dire Maul North and do not depose the crystal pylons throughout West, Prince Tortheldrin will not be present in the Southwest corner of the Athenaeum.
Lord Hel'nurathLord Hel'nurath is a Summoned boss in Dire Maul West which is the final part of the Warlock Epic Mount questline.
The ritual leading up to Hel'nurath's spawning takes place where Immol'thar is fought. The beginning of the ritual mandates the raid kill waves of demon adds which spawn while the Warlock in the group uses their J'eevee's Jar, Black Lodestone, and Xorothian Glyphs at the correct times.
Lord Hel'nurath himself is not complex, but the event itself can be slightly overwhelming.
RevanchionRevanchion is a limited time boss that only shows up during the Scourge Invasion. Make sure to get any loot off of him before the event ends.