Raigonn

Raigonn is the last boss of Gate of the Setting Sun.

Adventure Guide
''This colossal mantid spearheads the assault against the gates. Acting as a living battering ram, Raigonn mercilessly hammers the pandaren defenses, seeking to decimate any and all obstacles barring the mantid's ruthless invasion of Pandaria.''

Breaking The Siege
Raigonn has burst through the outer gate, and is now attempting to ram through the inner gate! He must be stopped by destroying his weak spot.

Strategy
Start by jumping down the wall and healing the fall damage. If the group wipes and reappears at the dungeon entrance, ropes can be used to climb down without taking damage.

In phase 1, Raigonn is nearly invulnerable. The tank should stay down and keep aggro on Raigonn and random mantid adds that periodically spawn. It is also preferable to leave one DPS down to help the tank quickly kill Swarmbringers before they can summon enough swarms to overwhelm the tank. The remaining DPS should jump into cannons, which will launch them on top of Raigonn, and attack the weak spot.

After the weak spot drops to zero health, phase 2 begins, and Raigonn becomes vulnerable. This phase is straightforward: kill the remaining adds, then focus on Raigonn. The only thing to watch for is his charge attack: move out of the way when you see him cast Fixate.

Related Achievements

 * Heroic: Gate of the Setting Sun
 * Heroic: Gate of the Setting Sun Guild Run
 * Mantid Swarm