Improved Roar of Triumph is a heroic tier feat.[PH2:186]
Prerequisite: Barbarian, Thaneborn Triumph class feature.
Benefit: When you use roar of triumph while raging, roar of triumph becomes a close burst 5 + your Charisma modifier, instead of a close burst 5, and you gain a +2 power bonus to weapon damage rolls until the end of your next turn.