Oblivion

The Oblivion is gained by opening a chest located in the room where Riku was fought while possesed by Ansem. The player doesn't get a chance to open it until after the fight. Probably the strongest mêlée-oriented Keyblade in the game. Oblivion reappears in Kingdom Hearts II, as both a key chain for Sora after his reunion with Riku, and as one half of Roxas' dual set of Keyblades, the other being Oathkeeper.

Kingdom Hearts

 * Attack:  11
 * Strength: +7
 * MP Bar: -1
 * Passive abilities: None
 * Keychain: Kingdom Hearts crown (Sora's necklace symbol)

Kingdom Hearts II

 * Strength: 6
 * Magic: 2
 * Abilities: Drive Boost: The drive gauge fills up faster.
 * Keychain: Kingdom Hearts crown (Sora's necklace symbol)