Death Touch pretty much like it sounds . a 1 shot kill that returns damage (all of mobs hps) as health to the reaver . this could cause problems as far as reavers death touching big mobs so either give it a long recast time like 2 hours .. or limit the damage to 100k that way for the 500k hp mobs its not just an instant kill ..
just a thought. oh and maybe some epic abilities for melee classes . that way everyone has something to look forward too .