Originally Posted by
Lucky_
DK, in all simplicity can do one of the two things in their 10 second baseline rotation:
1. Stack diseases doing little to no damage
2. Do meaningful damage with main strikes (provided diseases are up)
3. Do prot warrior level of damage with main strikes (without diseases)
By ensuring that diseases never stick on target, you ensure that DK is never able to do meaningful damage with main strikes. It's just that simple.
P.S. Yes, I know 1. is false when running shadowfrost. The entire point is however that shadowfrost is dead. Blizzard wants it dead really bad and wants it to stay dead.
Look on the bright side. So long as shaman healers carry bloodlust, you'd have to be truly nerfed to the ground, at least to the extent that DKs have been nerfed in last patch before people start swapping you out of 3s and 5s caster teams. Bloodlust is just that gamebreaking when going for the kill.