So with the advent of Control Undead, the variety of pets we get to play with as Death Knights had a huge increase.
But... since I'm greedy, I have to ask: could it be more?
What if Unholy got to replace their ghoul with a permanent pet. The same way a hunter tames a pet, a death knight would get to "tame" an undead to be his permanent pet.
It could work something like - the death knight has to kill the potential pet, then the taming begins where he has to fight an astral representation of that pet (sort of like it's soul) and when it's finally over, he has completely dominated the pet and controls it just as he would his ghoul.
The same mechanics could still apply with stabling, but instead, a DK would stable his pets at graveyards and would interact with a spirit keeper.
Thoughts?