And if they spot you just use calm or pacify
used to love doing that then sneaking behind them and slitting their throats. With illusion theres also Rally which you could use on companions to give them more health and make them stronger, used that alot when rolling with ppl.
Just fought 2 master necromancers. Guess what, they are now mines lol. They've only used Ice Spike so far which sucks though. Thanks LC I have 57 creep cluster now. 15 grapes and 29 tongues, could have gotten more grapes and tongue but just wanted the creep