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Classic EraBlackrock DepthsOk'thor the Breaker
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Ok'thor the Breaker

Ok'thor is an Arcane specialized Mage, and is one of the options for the boss summoned in the Ring of Law or "Arena" event in Blackrock Depths. The boss is desired by many casters in hopes of claiming his Ban'thok Sash, a belt with valuable 1% hit for many pre-raid BiS set lists.
Overview
Tank
Tanking this boss does not require any unfamiliar techniques or positioning. Establish and maintain threat while your DPS burn him down.
Damage Dealers
Once your tank has established threat and you begin your DPS rotation, keep distance from the boss to avoid being hit by [Arcane Explosion]. Be aware of who has been targeted by [Polymorph], and dispel it if your class can do so.
Healers
Melee DPS, the tank, and anyone standing too close to Ok'Thor will be hit by [Arcane Explosion]. Top everyone off after this goes out to avoid unnecessary deaths. Be aware of who is affected by [Polymorph], and if your class can, be quick to dispel the target.