While players were fixated on the clear bug of no Unstable Embers on Mythic Zskarn, there’s actually been another very important nerf (or bug) on Mythic Z’skarn in Patch 10.1.5 — increased cooldown on abilities!
If you missed it earlier this week, Unstable Embers were not being cast at all in Patch 10.1.5 for a brief period.
Originally discovered in the Raid Leader Exchange Discord.