100% increased total Recovery per second from Life Leech
30% increased Damage while Leeching 
Brutal Fervour is a notable Ascendancy passive skill for the Slayer that grants increased life leech per second and grants increased damage while leeching. It also modifies life leech effects to not get removed when the player reaches full life. This effect does not work with Ghost Reaver, as leech effects are removed at full energy shield. In the case of instant life leech effects, such as Bloodseeker and legacy Atziri's Acuity, the leech end immediately regardless of whether you are at full life or not — Endless Hunger does not preserve or store such effects.