It's Tuesday and Ubisoft has revealed a new batch of alternate upgrades, for the undead faction this time. Here is a list of the new units with their special abilities:

• Skeleton Warrior: Undead, Large Shield, Magic Proof (25%).
  
• Disease Zombie: Undead, Enrage, Weakening Aura.
  
• Poltergeist: Undead, Flyer, Incorporeal, Ammo Steal.
  
• Nosferatu : Undead, Life Drain, Teleport, Sleeping Strike
  
• Lich Master: Large Creature, Undead, Caster (Raise Dead, Weakness).
  
• Banshee: Large Creature, Undead, Death Wail.
  
• Horror Dragon: Large Creature, Undead, Flyer, Sorrow Strike.

I'm sure you want to see screenshots and stats, so head to the official portal right away.