Ghost reaver.

"

Aplier wrote:

For a spellcasting witch, I wouldn't necessarily say it sucks, but it isn't outstanding either. 4% leech from the gem isn't enough to maintain your ES all the time, but it's enough to help keep your ES up longer during combat. GR it's primarily aimed towards melee as a source of ES generation. Before GR, melee constantly had to disengage from combat whenever ES got low or risk dying, which was very disruptive to the flow of gameplay. Thanks to GR, a melee with CI can now stay in combat just as long as a melee with HP, but the HP melee still gets the advantage of being able to pop a life flask for emergency healing.