Strength Sap: Steals Strength over time from all enemy heroes within range, while healing Berzerker.
Mark for Death: Grants full vision of marked enemy and increases movement and attack speed when facing the target. Mark for Death resets if the target dies.
Carnage: Grants Berzerker stun and debuff resistance. He takes additional damage, but deals a large portion of his max health in bonus physical damage.
Expect to see Berzerker in this Friday's patch!

Links
youtube.com - HoN Hero Spotlight: Berzerker