New units in Necropolis. Discussion and selection between upgrades.

The most useless upgrade is for the Banshee; how can undead have a lot of morale?

The calculation is based on the enemy's morale. The base damage is (10 - target's morale) for each Banshee in the unit! And undead can significantly reduce it; for example, if you take high-level Necromancer super abilities and a couple of artifacts, then, for example, 20 Banshees in a unit with -6 morale will deal (10+6)*20, which is 320 damage, which is quite a lot! What if there are 100 Banshees? Or even more? So, these are very useful creatures.