Expected: If you get a Power Surge proc while you are casting Lava Burst it will not go on cooldown, allowing you to launch another Lava Burst after the cast finishes. It works like this in every other version of WoW. This bug also contributes to Ele shamans extraordinarily low single target dps.
Actual: If you get a Power Surge proc while you are already casting Lava Burst, the proc will be unusable if you finish the cast.
Reproduce:
- Flame shock mobs.
- Start casting Lava Burst.
- Get a Power Surge proc.
- Finish Lava Burst cast.
- Notice how you now have a Power Surge proc that you cannot use on Lava Burst.