Mana leech nerfed?

[The Mock]

Ok...but even when I'm fighting a group of corrupted rogues in normal it doesn't seem like I'm leeching much. I see a blue swirl and I do leech a little bit of mana but not enough to keep my globe from plummeting like a rock down to zero. I never had this problem in 1.09...heck I never even kept room in my belt for mana potions but now I do. I would've thought it would be easier to leech mana off of the lesser monsters since many would have higher hit points and therefore there would be less overkill. I dunno...any thoughts?

Mockey