Just love how they put so many npcs in the game that are 100% immune to caster dps. Well went in lvl 80 634 AA with app5 healer merc. Didn't do so hot since the only DPS I could do as a mage was my pet and host of elements. my AA malo landed first try but none of my nukes would land (fire or magic). I wonder if melee have this problem when doing their epic 1.5, npcs that can't be hurt by melee attacks? Came back with a 76 warrior and had no problems.