Increases the duration of Frenzy and Onslaught by X seconds. Diablo III Pre-release Barbarian Skills Berserker Skills — Frenzy • Threatening Shout • Onslaught • Double Strike • Strong Constitution • Berserker State • Leap Attack • Enrage • Dual Wield Specialization • Savage • Speed Boost • Whirlwind • Slashing Strike • Relentless Attacks • Destroy ArmorJuggernaut Skills — Bash • Cleave • Ground Stomp • Focused Strength • Stubborn • Recovery • Taunt • Stunning Blows • Two-Handed Weapon Specialization • Invigorated • Seismic Slam • Revenge • Iron Will • Crushing Blows • Seismic EffectBattlemaster Skills — Battle Rage • Perseverance • Power of the Battlemaster • Iron Skin • Hammer of the Ancients • Battle Cry • Scavenge • Critical Attacks • Shield Specialization • Furious Charge • Ignore Pa