Darkness of the wolf

Name: Darkness of the wolf

Appearance: It is a little black shard that was forced into his bloodstream two years after he was born. Whenever he loses control over the seal, his skin or fur( depending if he is a wolf or a human at the time) turns complete black and he is able to morph into the ground and travle momentarily under the ground at incredible speeds. His eyes turn black and if he stays in the form long enough, white streaks will form on his back and chest.

Approved.