Eddie

can change its appearance as fragments are found, can teleport "starting items" (weapons/items that appear during transformation)

Bloodthirsty, narcissistic, selfish, rude, aggressive, and a maniac, but reasonable and kind unless provoked or involved in a fight with a bunch of enemies before. Cold-blooded, calculating, intelligent in human affairs, not far from anything lofty. Noble and protects the weak.

The killer's appearance: Eddie in a white bloody T-shirt and with a bloody axe.
Wicker Man Appearance: A wicker man with Eddie's face.
Mummy Appearance: A mummy with Eddie's face and electric shattered handcuffs on his hands.
and many other images

He is mortal and has lost the ability to change shape. He ended up in London, which was captured by one of the Beast's six (the Shadow Assassin) and his henchmen. He remained in the form of the assassin.

He was the living embodiment of free spirit and heavy metal, patron of the band Iron Maiden, and able to change his appearance, but his worst enemy, the beast, split his soul.