Fenrir

Fenrir is a keychain for of Sora's Keyblade.

After defeating Sephiroth in the Radiant Garden, Sora witnesses a battle between Cloud, Sephiroth, and Tifa. After Sephiroth and Cloud fly away into a duel, Tifa thanks Sora for his help and gives him the Fenrir keychain. It is the KHII equivalent of the Metal Chocobo

The Fenrir Keyblade takes on the appearance of a pin tumbler lock key, with bandages adorning the handle. It is one of the longer Keyblades.

Although it's ability is negative combo, it is still considered the best because of its best attack power.

Stats

 * Attack: 7
 * Magic: 1
 * Ability: Negative Combo
 * Effect: Maximum number of air and ground combos is reduced with 1.

Background
Fenrir is named after the motorcycle ridden by Cloud in Final Fantasy VII Advent Children.