For Shadow, this ability causes Mind Flay to gain the Insanity effect on a target affected by Devouring Plague. Insanity increases the damage of Mind Flay by 33% per Shadow Orb consumed.
Insanity consumes Shadow Orbs?
Or "per Shadow Orb consumed" means by DP?
Because if it's the 1st one, simply it does not work. No time to build new orbs before DP fades out.
If Insanity uses the number of shadow orbs consumed by DP then it must have a cooldown if it's castable. Or is it passive?
Anyone knows something more about insanity?