You are correct about Sneak+archery+alchemy. However, think of conjuration and illusion as your armor for diverting attention from you.

This is like a safer version of my Nightblade. Sit back and snipe, then raise the dead, as opposed to get in and slit throats, then raise the dead. I personally prefer the up close and personal approach but credit to anyone who realizes what incredible synergy Necromancy and Assassinating have with one another.

Thanks man

I know right? You kill one guy, then he kills another guy, and it goes off the hook

Congrats on the legendary status, dude. Awesome to see people recognize the worth of combining Assassin and Necromancer.

Cheers man I'm glad I posted it

That would certainly work! Although if you take enchanting, you don't need to take alchemy. You can carry around bows and armor with different enchantments for different situations, because I don't think alchemy is affected by the necromage perk. You could put the perks into smithing instead to improve the weapons effectiveness. While taking alchemy and enchantment would certainly be a potent mix, you won't need the extra damage output for this play style, as you only kill people to make a corpse to fight for you while you watch from the shadows. If you just want to make an ordinary mage/assassin and leave out necromancy though, take both alchemy and enchantment.