The exact specifications and details of keychains have never really been touched on in Kingdom Hearts. I was wondering what constitutes the keyblade's power and allegience, the keychain or the heart it was born out of.
Basically what I'm wondering is if the keyblade itself is permanently bound to the heart, but if the keychain which dictates the form is what is able to be passed around. (This would explain how the KK went from Riku to Sora and how Riku still has a keyblade, and how he did something similar with Kairi's keyblade)
Quick sidenote: do you think a realm of darkness keychain would work on a keyblade aligned with light?
Basically what I'm wondering is if the keyblade itself is permanently bound to the heart, but if the keychain which dictates the form is what is able to be passed around. (This would explain how the KK went from Riku to Sora and how Riku still has a keyblade, and how he did something similar with Kairi's keyblade)
Quick sidenote: do you think a realm of darkness keychain would work on a keyblade aligned with light?