Thirst for Blood

Thirst for Blood is a skill granted from Jack, the Axe. The skill reserves 10% life and grants 20% more damage with bleeding. The skill also applies beams to the closest nearby bleeding enemies to a maximum of 5 enemies. Regenerates 400 life per second for each enemy effected by the beams.

The Regeneration gained makes this a viable source of sustain as it stacks with other regeneration sources such as leech and life regeneration.

References: Video from creator