Pretty simple, must be hated or some rep where you can attack frenzyhearts
Mobs have 5k health each and go down quick, also are close together (frost mage anyone)
Their ranged attacks hit for around 600 but get close and their melee are around 125 each
In addition to the great xp these mobs also drop pots, cloth,silver and the like. Normal humanoid fodder.
Hope this helps
Stangcobra