Alone

His true form is that of a werewolf, but he is a rogue who has been separated from his clan.

He apparently left his pack long ago due to some unspecified trouble.

Having lived in isolation for so long without interacting with others, he has completely stopped transforming into his human form.

Alone learns about the existence of the mysterious Ponera's Cocoon.

He hatches a plan to steal the cocoon and consume it, hoping to ascend into a full-fledged Kishin.

He successfully snatches the cocoon from a character named Nars and retreats to his hideout.

When Maka Albarn confronts him, he initially pretends to be defeated, only to reveal it was all an act.

Reviving instantly, he easily overpowers Maka and her friends, showcasing his formidable strength.

Just as he is about to devour the cocoon, he is struck by a surprise attack from Sid Barrett.

This momentary pause gives Maka the opening she needs to defeat him for good with her "Six-Character Hunt" technique.

As a werewolf, he possesses incredible physical power, enough to overwhelm skilled opponents like Maka.

His soul has warped into a Kishin Egg, a state he reached after consuming human souls.

Interestingly, he was supposed to have the power of immortality, a common trait for his kind.

However, he seems to have lost this ability at the same time his soul transformed into a Kishin Egg.