Yesterday I was playing with my wizard character and I equipped the Molten Wildebeest’s Gizzard legendary gem to get HP regen. It was working like a charm, I could kill the Butcher and make progress in leveling. Today when I logged in and there is no HP regen at all… I now tried to modify on of my rings to life per second as well and I am standing in the middle of a town and my HP just stays at half and nothing happens.
Gain an aura of death that deals 792% of your Life per Second as Physical damage to enemies within 16 yards. You no longer regenerate Life. [750 - 1000]%
A quick look at your Wizard…
…confirms that she has these in the Cube’s armour slot.