Not only are they nerfing the two spells that it currently gives 30% better damage to, but for added fun they decided to make the 30% a crappy 20%. Right now it makes MG do 65% of your dot damage per tick rather than 50, and makes DS do 130% instead of 100%. It's already in its current iteration worse than supremacy except in purely single target fights.
Now that MG and DS will only tick for 30 and 60 without sac, with sac it'll only increase MG/DS to a measly 36/72%. Am I missing something or is this going to make it a very large dps loss in all situations, or did something else besides it not effecting drain life and being lowered from 30% to 20% happen?
If this is the case, all I have to say is wow. Look, I get Blizz wants locks to be pet classes. I always use sac unless it's progression content and don't mind it being a bit lower than supremacy.(though I wouldn't mind stepping back in time to when it was 50%...) But why make it a massive dps loss? The only people it satisfies are the "LOCKS HAVE PETS DEAL WITH IT!!!" wrathbabies who probably don't know you could sac your pet for a good amount of vanilla and TBC.