Enhanced Inner Release

Acquired: WAR (traits)
Level: 96
Patch: 7.0

“

Grants a stack of Burgeoning Fury upon landing Fell Cleave or Decimate while under the effect of Inner Release.
Duration: 30s
Maximum Stacks: 3
At maximum stacks, become Wrathful, upgrading Inner Release to Primal Wrath.

— In-game description

Enhanced Inner Release is a trait unlocked at level 96. It is available for Warrior.