Replica Kingdom Key

The Replica Kingdom Key is the default form of Xion's Keyblade in Kingdom Hearts III. It is also utilized by the Replica Xehanort of Xion.

Kingdom Hearts III
The exact method which this Keyblade came to be is unknown, as Xion no longer had access to Ven's heart to wield his Keyblade in the form of the Kingdom Key.

Xion wields this Keyblade as a member of the real Organization XIII and when acting alongside the Seven Guardians of Light. Her counterpart among the Replica Xehanorts also wields this blade.

Design
The Replica Kingdom Key is identical to the Kingdom Key, which is depicted as a classic skeleton key approximately 3.5' long, with a long silver Keychain extending from the hilt, and a Hidden Mickey token on the end of the Keychain. The blade and teeth of the Keyblade are silver, the rainguard is blue, and the guard is bright gold. The teeth of the Keyblade form the outline of a crown which matches the crown charm Sora wears.

Xion, while still lacking free will, could Formchange the Replica Kingdom Key into a copy of Lunatic whenever Saix entered his berseker state.