Similar to Ashes of Alar during Burning Crusade Timewalking, Invincible has a chance to drop from the Ulduar Timewalking cache received at the end of the raid.
A few weeks ago, we’ve seen multiple instances of Ashes of Al’ar dropping from the Black Temple Timewalking box.
With Wrath Timewalking available this week, now we see reports of players looting Invincible’s Reins from the Ulduar Timewalking box.
Source: Reddit
Invincible dropped today
by u/whereswilldoe17 in wow
If you still don’t have the mount, we recommend you to run Ulduar Timewalking on as many characters as possible.
