Unchain (Only if Infuriated is ready for use)
Infuriated (If you have less than 3 or 4 wrath)
Vengeance
Inner Release
Bloodbath
Berserk
Run to the pack of mobs and start Overpower and spam Overpower until you can't do it anymore due to Berserk's negative effect kicks in.
SteelCyclone
Foresight
Second Wind (If needed)
Infuriated
And then repeat Overpower