I'm trying to design a character and wanted to get you all's help on it.

I want to be a mage who doesn't have destruction. I don't know, I just always got sick of throwing fire spells at people, I'd rather have to work around them. I wanted to do Necromancy - my theme was going to be "I don't kill my enemies, I let my enemies kill each other" - but even with mods necromancy doesn't seem to be very viable within the game. Here's the build I was looking at -

Favored Attributes
Intelligence
Willpower

Majors
Conjuration
Illusion
Alteration
Mysticism
???

Minors
Short Blade
Light Armor
Restoration
Enchant
Alchemy

What do you all think?

Mysticism has Absorb Health which is actually better than Destruction effects. You'd just need to visit a spellmaker and make some custom spells and you're set to svck the life right out of your enemies.