Sworn enemy.

Who would you choose for the Cursed Ones when playing against Necromancers?

I would choose: Spectres, Vampires, Liches (it would be good to also include Death Knights).

Vampires attack relentlessly and drain a lot of health (they drain life – don't think of anything else), they are a very annoying opponent.

Lucari should be able to handle them well if they engage, but otherwise, you can catch them with Wardens, and they won't drain much life because their defense is high (and if you root them and cast Stone Skin on them).

Liches are good archers and casters; it's best to kill them early.

That's what ice magic is for; it slows down the enemy troops quite well.

There are many skeletons, and with Berserk and a necklace, they hit VERY hard even now.

If there are many skeletons, I would take Altgrays. Yes, and also, I said that I'm playing with readiness, so first they'll hit with Spell Resistance, and then, it won't hurt that much, you dark elves.

It's better to put something on the arrow that hits only one target but reduces armor or slows them down.

To reduce armor, take Fire from Chaos; to slow them down, take Ice.

Yes, we need to clarify what stage of the game we are discussing (quick game or later stages) =). In my posts, I'm referring to a battle at levels 20-25.