Attumen the Huntsman

Trash

The trash up to Attumen consists of undead horses and stable hands, and have a respawn time of 30 minutes until Attumen is defeated. Pulls are generally 2-3 mobs, consisting of 2 horses and a stable hand. The horses are either Stallions or Chargers. The Chargers will randomly charge another person in the raid and fear when they do so making it important to pull the packs back away from other mobs. The stallions periodically buff themselves and debuff the raid, the buff on them can and should be either be dispelled, purged, or spell stolen as it increases their damage a good deal. A few of the packs are 4-5 pulls, and since the mobs are undead the only Crowd Control that works are Priest Shackle and hunter Ice Traps.

You have 30 minutes to clear the trash to Attumen. Once the trash respawns it will aggro when the boss is engaged, so large amounts of down time should be avoided.

Phases

Phase 1

The fight is started when you attack his horse, Midnight. When you bring Midnight to 95%, Attumen will spawn. Your Off Tank should start off the fight, tanking Midnight.

Phase 2

Attunmen will run out and be tanked by your main tank (preferably by a warrior as he can be disarmed). He has a cleave, so tank him away from the main raid group while you focus DPS on Midnight. When Midnight reaches 25%, Attumen will mount up on Midnight and heal to 100%, beginning phase 3.

Phase 3

When Attunmen mounts Midnight, it's an aggro wipe, so the tank needs to immediately pick him up again. After allowing your tank to build aggro again, resume DPS on Attumen. Other than a cleave and a random charge (does about 6k on cloth, and isn't very frequent), it's a simple tank and spank fight from this point. Attunmen's charge is not an aggro wipe.

Positioning

Main Tank
Let the off-tank grab Midnight (phase 1). Grab Attunmen at Phase 2 & 3.

Off Tank
Begin the fight by attacking Midnight in his stall. After Attunmen mounts Midnight (phase 3) switch to DPS.

Suggestion (untried): before Attunmen spawns, drag Midnight out of his stall and into the stable hallway. This would allow the main tank to move Attunmen into the stall, and hopefully keep the ranged DPS out of cleave range.

Melee DPS
Behind the boss, duh.

Ranged DPS
Hopefully outside of Attunmen's cleave range.

Healers
Hopefully outside of Attunmen's cleave range.