One-Winged Angel

The One-Winged Angel (片翼の天使) is a Keychain for Sora's Keyblade which appears in Kingdom Hearts Final Mix and Kingdom Hearts: Chain of Memories.

In Kingdom Hearts Final Mix, the One-Winged Angel is a reward for defeating Sephiroth in the Platinum Match.

Design
The One-Winged Angel resembles Sephiroth's Masamune sword, although its handle and blade differ in keeping with the design of a Keyblade. The Keychain's token is one of Sephiroth's wings, hence the name, and the teeth of the blade resemble the spell Meteor. The Keychain token is tied to the hilt with a red cord.

In battle, the Keyblade becomes completely engulfed in flames when it is swung. This may be a reference to the Nibelheim Incident seen in Final Fantasy VII, in which Sephiroth razed a village to the ground.

One-Winged Angel is named after the famous battle music played when fighting Sephiroth in the Kingdom Hearts series and  Final Fantasy VII. The name "One-Winged Angel" refers to his Safer form from Final Fantasy VII. Despite resembling a Seraph, a six-winged angel, the title refers to the multi-colored wing that replaces his entire right arm. Since then, in almost all of Sephiroth's appearances he has been seen with one large black wing on his right side.

Gameplay
While its stats are low for a Keychain awarded for beating Sephiroth, its powerful critical hits, having the highest crit power out of Sora's Keyblades, allow it to rival the Ultima Weapon in power.

Notes and References
Monoptéryx Einflügliger Engel