Originally Posted by
Thrayne
To do this you need 800+ unbuffed haste. So in a raid with totems and aura you will be where you need to be haste wise. 3800 SP is how much SP you need, this sounds very high but easily obtainable in a 25 raid setting.
If you fall below the haste criteria or the SP criteria but you still have t10 4pc, you can spam MF during heroism (with dots up) for a dps increase.
Going from 4pc t10 with normal priority, to one without MB I gained ~800-1k dps.
All numbers I have read from shadowpriest.com and in combination with personal experience.
I'm Thrayne - US - Greymane for anyone wanting to armory my spec/gear setup.