This is the most powerful weapon you can have for Act 5 Merc it beats Grief. Made him the strongest DPS merc of them all, don't need any auras guys :) :
The ACT 5 Merc can Survive Uber Mephisto !!! Ubers VS Act 5 Frenzy Barb - Diablo 2 Resurrected - YouTube
Best Runewords for D2R 2.4 Mercenary - Top Weapons for New Act 5 Mercenary
Skill and Character Builds Discussion - Page 111 - The Phrozen Keep
cRPG Blog: DOUBLE SWING HARDCORE BARBARIAN BUILD, Diablo 2: Lord of Destruction
Diablo 2] New Act 5 Mercenary FRENZY Dual Wield Griefs + More Combos Patch 2.4 - YouTube
I've built my best Travi Horker Merc so far. Gives me might so i kill faster and soaks some dmg, but will never die. Stats are with buffs. Got eth bonehew with
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THEY FIXED THIS 1 WEAPON BUG | Frenzy Mercenary Hidden Mechanics | Diablo 2 Resurrected D2R - YouTube