Why was the -50 health item changed from healing to blood magic?

Seriously, this has me wondering. It's only a difference of 3 energy, and if it was done as some sort of hindrance to the 105/55 build, well, energy has never been a problem for those builds anyways.

I wonder if this was changed for the Necro's sake, and not the fault of the Monks. Is there some -50'esque Necro build possibility? There are a lot of health-percentage sacrificing spells for Necros. Are any of you Necro players utilizing a build with this item now?

I can't remember the intricacies of it, but I remember there were a few ideas floating around about doing something similar using Aura of the Lich - not sure whether it would be for that. I've still yet to unlock this skill (1 of the 3 I have left to capture >_<) so I don't know exactly what it does.

A -50 health item would be helpful to any N who sacrifices health. There was also a theoretical farming build floating around using Aura of the Lich, but it's become buried.