Necropolis or Castle (Which one is stronger?)

I'll repeat myself, as I made a mistake in the previous post – you cast the prayer spell, with a water magic expert – and that's it... there are 13 archangels, and you can do even more, so 2000 skeletons will be defeated, but don't forget that there are not only Archangels in the army, which are perhaps not the main force, but the 2000 skeletons are the main force, and without them, the necromancer's army will lose.