When you enter the room, half the raid goes to one side, and the other half stays. One room is deemed “live†(the one you enter) and the other room is deemed “undead†(the room on the right after the gate). Mobs that die on the live side respawn on the undead side. Ergo, you have to kill the mobs twice (their alive versions and their ghostly versions).
As the AoE healing Priest, I set up shop on the undead side with 4 other players. This resulted in 2 healers, a tank, and other DPS on the live side.
I suggest setting up Melee DPS on the Undead side and caster DPS on the live side.
You spend ~3 minutes killing the various waves coming in. After that time has passed, Gothik then teleports down to the live side (first room) and you can engage him. Then he switches to the other side and the undead group engages him. He keeps doing this back and forth. There are no waves for you to worry about at this point.
At 30%, the gates open and both groups can engage him without worry. He should go down without further difficulty.
Make sure the live side groups and the undead side groups are coordinating and communicating. Live side does not want to overwhelm the undead side!


The first thing you have to understand is that Razuvious hits really hard. He hits harder than normal. He hits so hard he can remold the face of your bear tank and dent plate in others. He has 2 Understudy’s with him. There are 2 orbs on either side. The goal here is for your tanks to activate the orb thus granting control of the Understudy’s to you. Your players have to use their abilities to tank him. They have to taunt off each other and activate their abilities accordingly.




Note: I really recommend using a healer class and a class that has the ability to heal itself (Balance Druid or Elemental Shaman), but I stress that the fight can be done without either of the two. The healer in the back has to compensate by being really on the ball with their regeneration and healing if such a player is unavailable.

And that right there is the gimmick for the fight. I like to designate left side as positive and right side for negative. You don’t have to stray too far out. Melee players with opposite charges can remain 180° from each other and still stay within striking range of the boss.
Healing is a walkover on this boss. AoE heals and single target heals on the tank should the order of the day. Your AoE healers will be able to cover both groups no matter which side they are on. Keep a single target healer on the tank at all costs. He does like to randomly fry players with lightning. It’s nothing a healer can’t handle, however. 
The AoE healer will be keeping an eye on the kiter. It is inevitable that the kiter takes a few glancing blows here and there. Every time a player gets hit by Zombie Chow, they suffer a disease called Infected Wound which cannot be cleansed. It wears off after a minute. The disease causes players to take increased physical damage by 100 every time it is applied. I once had 20 applications of the debuff and believe me, it wasn’t fun at all. 





