Stats

Location: Plague Quarter (2/3)
Health: 3,060,000
Damage: Nature, weak melee
Enrage: None, the focus is on surviving

Helpful Links

• TankSpot Video
• WowWiki
• Wowhead - The part about the gauntlet leading up to Heigan is out-of-date.
• [http://www.youtube.com/watch?v=y-msjvccLB8# Dance Tutorial]
• Bosskillers - A very good chart of the 4 safe zones.

Abilities

PHASE 1

• Spell Disruption: Anti-caster aura

This is a 20-yard aura around Heigan the Unclean. It will increase cast times by 300%.

• Decrepit Fever: (Disease, Nature) DoT + debuff

This is a disease applied to a random player which will do 3,000 Nature damage every 3 seconds and reduce the maximum hit points of every player within 20 yards by 50%.

• Eruption: (Nature) AoE

This causes about 3/4 of the floor to explode, generally killing anyone not in the safe 1/4.

PHASE 2

• Plague Cloud: (Nature) AoE

Deals 7,500 Nature damage a second to any player remaining on the raised platform during Phase Two. Nobody should be hit by this.

• Eruption: (Nature) AoE

Same as phase 1, but occuring twice as fast.

Basic Strat

PHASE 1
The basic idea of the fight is to survive. At the start, Heigan is pulled to the tank in Zone 1. Ranged run to the platform where Heigan initially stands, preferably near the back of it. When the floor eruptions start, the tank must move Heigan through the safe zones, and the melee should move with him. Again, the focus is on staying alive by avoiding the slime eruptions. Melee can attack from the front if needed since Heigan's melee is very weak. During this time, cleansers should remove the Decrepit Fever disease. Due to Heigan's aura, the tank must make sure that Heigan is not too close to the ranged. Ranged can help by trying to stay near the back of the platform.
Safe Zone Pattern: 1-2-3-4-3-2-1-2. After one complete trip (back and forth), there will be one more eruption before phase one ends.

PHASE 2
Heigan will teleport to the ranged platform. All melee and ranged immediately move to Safe Zone 1. There is an AoE effect on Heigan's platform, forcing everyone onto the floor. The eruptions are twice as fast as phase 1. Even more so than Phase 1, this phase is about staying alive. Concentrate on being in the right place at the right time. Do not wait for the raid to start moving before you move. Start moving as soon as the Eruption dissipates. With latency, it will look like most of your raid is going to get hit by the slime, but don't worry about them. Focus on getting yourself from one zone to the next in time. After Phase 2, Heigan will resume fighting the tank. Ranged move to the platform.
Safe Zone Pattern: 1-2-3-4-3-2-1-2-3-4-3-2-1. (Two trips back and forth)

Keys to the fight

1. Staying alive
2. Cleansing the disease
3. Staying alive
4. Staying alive

Achievements

• The Safety Dance - Defeat Heigan with 0 deaths.
• The Plague Quarter - Defeat the bosses of the Plague Quarter.
• The Dedicated Few - Defeat the bosses of Naxxramas with 9 players.