undead

This unit can be harmed by spells against undead creatures.

Undead creatures can only 'live' in corrupted area's. They will try to corrupt an area as soon as possible to regain their strength from it. Some of the undead have awesome powers but there are special defences against them. And they can only leave their surroundings when they are higher undead but there they don't recover from taken damage. Higher undead can however take normal undead troops with them.