© By Morynn You need to kill a Dreadnaught, in order to loot a Medallion of the Faceless. This is required in order to gain acces to the Isle of Dread. They con light blue to a 53, but be warned, they are seriously underconned and require strategy to kill.	picture courtesy of Minions of Veeshan
First, the tank needs max CR and all resist cleric/drd buffs. The tank will be debuffed by the dreadnaught to 700hps. A ticking heal and patches are a must if the heal is less than 700 a tick.
Find a log, or rock in the area, put all casters, healers, and long range DDs behind it, to protect them from the AoE. Have one healer hiding at all times to heal Melees, and others who are hit with the AoE. One healer should be devoted to the MT. Have a constant tick heal on the MT at all times.

Pull Dreadnaught close to where the others are hiding, but only after the debuff has been cast, otherwise all in area will be debuffed to less than 700hps. Have the MT watch for when the DN uses its AoE, after he AoE's, the MT yells attack, Melees should only used ranged weps. Healers/patchers pop out after aoe goes off to heal tank.

The old school way is to "Kite" them, which works, but is a bit more onerous and involves a lot more people. Kiting involves having one person aggro the mob and lead it in a big circle with the others following to do damage. Here is a video link on youtube, of a guild (EQOA PGA) kiting a mob.

When deciding whether to Main Tank or 'kite' a mob, you'll need to factor in how strong your MT is and how much support will they will be given. If your toons are strong 60's, a dread can easily be one grouped, if not, kiting might work best.