Bloodlust?
 

just started using bloodlust as a blackguard and it makes my damage numbers go through the roof. can anyone tell me what else it does and any negative effects? I noticed some confusion but not sure if it was the bloodlust or the enemies i was fighting.

Thanks!

I also am curious.

im sorry, it's a secret.

Bloodlust combined with some item that increase attack speed is fantastic

Positive effects are simple - extra to-dam and blows. There can be negative effects when hitting, or after killing a monster, or especially as bloodlust is running out, and confusion can be one of those. A couple of other low probability events too ;)

The basic philosophy is once you start, you don't want to stop...