Because it's basically infinite ammo without icebreaker's recharge delay. It's a single target stun lock death machine...So long as you land your shots. Now I'm not hating on the black hammer, I love the thing. Had it almost since week one of DB. But it really was to powerful. In the hands of any decent player it destroyed every critable non raid boss in the game (Which is basically all of them). And let's be honest even with the changes it's still going to be ONE of the best pve snipers in the game. While I'm not shouting for joy for the nerf, I have been waiting and expecting it for some time now. and I do feel that the nerf is justified and fair without rendering it utterly useless.