Berserk

Syntax
berserk

About
Those with the berserk ability enter a state of insane rage in combat. Its effects are not altogether unlike the frenzy spell -- a huge surge of combat prowess, coupled with a disregard for personal safety.

Heroes and Legends have greater damroll increases. The formula for damroll is 3+(your level/15). Heroes have +5 more damroll and Legends have +10. This skill costs 50 mana to use.