The Keyblade is many things: a cosplay accessory, a valuable collector's item, a blunt weapon capable of dealing massive damage, and a house key. That's right: a house key. The Keyblade turns from a regular key to a 3-foot weapon with the press of a button. The Keyblade comes in 5 different designs: The Kingdom Key, Oathkeeper, Oblivion, Way to the Dawn, and the X- Blade.