Warriors are overpowered?

[NoobRyu]

I'm a rogue and I find it very hard if not impossible to drop a warrior. They have all the op buffs, armour, health and everything and for a rogue I finally run out of mana and die. Warriors have it easy, they can replenish they're mana with a skill they use (don't remember name) and so they spam there attacks until I die. I've tried everything to beat warriors, It just won't work.