Didnt know but getting cast speed in any form skip the last tick of damage of My mind flay. The little mushrooms from naxx and the neck piece with haste, Also mage atiesh makes it awful. Is it bugged? Or is it on My end? I am pretty sure it doesnt deal damage on the last tick Even when i don’t try to precast another spell.
Shadow priests scale negatively with haste, due to haste not scaling our global cooldown down and the shadow priest rotation already being GCD locked.
Haste does not improve our dots/mindflay/mind blast, the only spell spriest uses that stands to benefit from haste is mind sear.
haste doesn’t affect channeling spells.
It does in phase 8.