I can't wait until I can create a spell that electrocutes the flesh off someone and raises them as a zombie-like frankenstein and higher level versions that burn you to the core and raise you as a firery skeleton giant or something.
And if your a undead, maybe he can become your friend, imagine if one of the companions you can get is something you summoned. Like first time you summon a skeleton, and it talks to you, in the middile of combat, depending on how it goes, if you can keep him alive (and it asks you too!) it can join you. You might need to be prepared, and have certain materials and a small quest to make it permanent, but imagine that ! You summon something and it pleads for its life, not wanting to be controlled and sent into harms way ! It' doesn't want to die and wants you to save it... hahah