Is haste an integral stat for Shadow Priests? And does haste affect channeling time? I have never played vanilla before, and only recently joined, so correct me if I am wrong. If haste affects channeling time, could this bug out mind flay to reduce the channeling time, but not send out another tick of damage? I couldn't really find anything online regarding haste and channeling spells. I also don't have a high enough priest (mine is only level 10, I just started a few days ago), so I can't really test this. That, and the lack of information online, is why I ask. Sorry if I got anything wrong, or am mistaken on a particular subject.
There are no haste items in vanilla for shadow priests.