For some reason I got hooked on the idea of a Kingdom Hearts AU where everyone is a Gem and like

-Everyone already has a weapon they can summon out of nowhere so that’s done

-Heartless are Gems that have been corrupted, and the Keyblade is the only thing that can restore them to their former self

-Nobodies are the projected bodies of Gems that have been left behind when their gemstone is stolen/corrupted

-Lion as a Dream Eater

-Drive Forms being Gem Fusions

-Xehanort fusing with Terra and taking full control like Malachite

-Xehanort being able to manipulate gemstones without fatally damaging them, enabling him to take fragments of his gemstone and put them into other Gems to take control of them, and split Ventus’s gemstone in two to create Vanitas

-Implications that a shard of Master Eraqus’s gemstone has been absorbed into Terra’s gemstone

-Gummi Ship battle against Master Hand ship

-Land of Departure/Castle Oblivion being a Gem Temple one can reformat with the Master's Defender

-I don’t know it just struck me as a really cool thing