More about: Fenrir Keyblade
The Fenrir Keyblade takes on the appearance of a pin tumbler lock key, with bandages adorning the base of the blade similar to Cloud's sword. Because of the styling, it is notably the only Keyblade with no "teeth". Its keychain resembles Cloud's wolf pendant from his Advent Children outfit (also a reference to the wolf-god, Fenrir).
Despite the passive ability of Negative Combo, the Fenrir Keyblade makes it up for its high attack power. It is also the strongest Keyblade available; its strength rating even surpassing that of Ultima.