Originally Posted by
Rockets
I'm pretty sure they sped it up for WoD too; in MoP I'd regularly use it at 2s remaining on the pull timer and it was never in any danger of getting there before the tank was in position. But yeah it's certainly slower than eg. a fireball, you're pretty safe to include it in your prepot macro for example.
Cast it before the pot though, just to be safe. I think I've seen casting CW put me into combat even though it hasn't hit the boss yet, although I can't confirm that.