If you take control of Thrall

Bug Report
1

…, with Sylvanas or Banshee, the prowler’s in ghost form at 50% health, will fight against you. This shouldn’t be happen.

  • Device Type: All
  • Device Model: All
  • Device Operating System: Android
  • Warcraft Rumble App Version: Latest Patch
2

Can confirm.

Possessing Thrall and having him dropped to 50% HP will trigger Feral Spirit, but the wolves are hostile.