Undead Mammoth

The Undead Mammoth actually a soulless being that borned from a mammoth's stuffed corpse that possessed by the alien lifeform after the alien crash landed on the museum as desperate attempt to adapt planet Earth. But unfortunately, though possession on the mammoth corpse seemingly help to adapt our planet, this effort drove the alien insane and suffer the hunger of other lifeform's lifeforce that it incapable to quenched. This is why it was gone for killing spree.

Abilities

 * The Mammoth possessed the ability to spray water that is so cold that it freezes on contact. It does so through its trunk.