Magmadar

Magmadar is the progenitor of the Ancient Core Hounds that roam throughout the Molten Core. After he dies, they will no longer respawn. He has four main attacks; Frenzy, Panic, Flame Breath, and Lava Bomb. Lava Bombs look like globs of fire on the ground. Move out of the way of them immediately, as they 3200 points of fire damage, spread over eight seconds. Flame Breath most endangers the MT, as he is in its path. If the MT keeps his back to the wall, the rest of the party should not be affected.

Healers and ranged DPS classes should be positioned so that they are outside the fear range from the start. Send your main tank to maximum bow range from Magmadar and stay there. Healers should position themselves so they are just in healing range of the main tank. (Healing range is 40 yards, and AoE fear range is 30 yards). Healers and ranged DPS should be in a semi-circle and spread out to reduce the chances of multiple people being affected by conflagration. Once the healers and ranged DPS are in position, the main tank pulls Magmadar with a bow/gun.

The main tank should pull Magmadar so that he is facing towards the main group of healers and hunters. Healers need to stand at max range behind the main tank. Dwarf priests should keep a fear ward on the main tank. Hunters should use Tranquilizing Shot when he frenzies. Melee DPS should come in on the sides and behind Magmadar. They need to be sure to avoid the Conflagrate and will be responsible for removing themselves from battle and bandaging since they will be out of range of the healers. If the group doesn't have a dwarf priest, or if the group is Horde, warriors can alternate in and out of berserker stance so that they can use Berserker's Rage about every 30 seconds. This will help them avoid being feared. It is important that the main tank doesn't get feared. If he does he will lose aggro, the healers will suddenly be in range of Magmadar, and it is unlikely that the raid group will recover.

The Bosses:
Lucifron
Magmadar
Gehennas
Garr
Baron Geddon
Shazzrah
Golemagg the Incinerator
Sulfuron Harbinger
Majordomo Executus
Ragnaros