New units in Necropolis. Discussion and selection between upgrades.

I don't really like the new liches! I use them to fight neutrals, but I put the old ones in for battles. I also didn't like the new banshees from the Necropolis. I use the old vampires, and also the new dragons!

You shouldn't skip the upgrade for liches; they are very helpful. As for the Necropolis, there are already enough options; it's better to take the upgraded version when sieging a castle, and the regular version for other situations (I hope I don't need to explain why). As for the vampires, the upgraded version is completely useless; they gave them a drawback. Maybe the upgraded vampires look nice, but beauty requires sacrifices.