Sworn enemy.

I agree about the vampires and liches, but not about the skeletons. Although there are many of them and they hit hard, they are not agile. Their attacks can be avoided by keeping a distance. I would put "Cursed" on someone more serious, but not on zombies. Zombies are just too slow.

I don't understand something, first you talk about skeletons, now about zombies:). But in essence, if it's an initial army, and the hero has zombies, and you don't put "Cursed" on them, it will be very painful:). When there are skeletons, and there are 1k of them, they are terrible, and if you also add a vampire, A-a-a?:)

Who would you choose as "Cursed" when playing against Necromancers?

Vampires - 100%, I am potentially afraid of them. They will stand (if they reach) near the archers, and our army will be in trouble.
Lich - They are not needed in the enemy army:D... with their plague:) and other tricks.
Banshee (is that what she's called?:)) - she is also not needed, but here I would either put "Cursed" on her or on the skeletons, it all depends on the number:).

Vampires hit without retaliation and drain a lot (they drain life - don't think of anything extra)

Vampires:), as I already said, I am a little afraid of them, although, if the elf is skilled, the vampire will fall apart:), I support shaddar.

Liches are good archers and casters, it is desirable to kill them early.

And with an archer, I'll take them down on the ATB scale (3rd grade archers) + if they are "Cursed" by us, with magic, with their magic (slowing magic:)).

There are many skeletons, and with BB + amulet they hit VERY hard even now

Skeletons are cool:), especially if the Necromancer has good defense! We take them down slowly, a couple of times with magic (one for defense, the other for slowing, the third for a strong hit:)), and then they will come to our troops themselves.

It is better to put something on the arrow that hits only 1 target but reduces armor, slows down, etc. In this regard, Dark magic and Rain (even against Necromancers) will be no worse than Chaos, and you don't have to worry about how not to hit your troops in the front line.

Everything has already been said here without me, I fully support Shadar;)!