Enrages you, increasing all damage caused by 5%. Requires a bleed effect to be active on the target. Lasts 1 min.
Hunger for Blood is a rogue ability introduced in patch 3.0.2. It provides rogues with a large damage buff to their attacks provided that one bleed effect is on their target.
Patch 3.1.0 (14-Apr-2009): No longer stacks. Damage bonus changed to 15% for a single application. Requires a bleed effect active on the rogue's target. No longer removes bleeds from the rogue. Now costs 15 energy and lasts for 60 seconds.
Patch 3.0.9 (2009-02-10): Now increases damage 5% per stack, (up from 3%.)