I have seen references in a few places (such as d3db.com) to suffixes like "of Devouring" and "of Draining" that confer Mana on hit. I don't see any items in the Auction House with such a mod. Would I be correct in assuming that this mod is one that was built into the game code but not actually enabled? Or is there any kind of item that it can appear on?
I recognize those suffixes from D2, where that did exist. It was a more universal stat in D2 since all classes used mana instead of just the WD. It was scrapped early in development when classes all recieved their own unique resource.
Quaestor the Wanderer
Edit: There is also a 4pc set bonus for zunimassa of +10 on kill