Doesn't work for me, either.

There is a monster, is it wraiths that regain hp on kills? It's an Empire race, does that work? Trolls regen every round. I know that's different, but that definitely works much to my mage's dismay.

That's awesome.  You're awesome.

You should check the UnitStat_ManaFromKills mechanism as well if you didn't, since I think I noticed Staff of Souls being questionable as to whether it worked.

Alright, I guess that must have been what I was using when I noticed.  I'll check again.

unfortunate, since it was the only decent 2h I found.

edit: 

I see they deactivated both bonuses to the sword in a previous patch.

but... it's only a base 15 damage sword.  that's only 3 more than a training sword.

makes it a very expensive, but useless, toy. 

why not put back the bonuses, but just reduce them?  otherwise, bump the damage up to 25 base.