ok, so... if you take after your elf side, you are effectively an elf. You'll just have family that are Illumans.
I should explain magic, as it took me a moment to understand it as I read. There are only 2 skills for magic. Arcane and Witchcraft. Arcane magic spends your endurance to replicate any given ability (you can cast it on yourself or others. The higher your level of arcane magic, the less endurance it costs (of course, the higher the level in the ability you want to replicate, the *more* it costs). The spells are harder to cast if you can't move or speak.
Witchcraft, on the other hand, lets you inflict weaknesses on others. Everything else works the same.
It sounds you want to have Magic, Witchcraft, though we can call it Necromancy or Dark Magic for flavor, if you desire.
This should be an easy character for me to make. I will do yours, and Nessa has told me her character concept remains unchanged.
I would like everyone else to let me know if they wish to make changes to their character with the information I've given.