[Sora sighs, shoulders falling a bit. He had been so sure this might have the answer, but for all the card did now it might as well be a normal playing card.]

Maybe...

[He puts the card away again.] Hey, let's keep this between us and any other Guardians that show up. We might not know how to use it, but Xigbar might. So we should make sure he doesn't get his hands on it.