You're still banned. You and that guy who suggested FF
BTW I think Darker Than Black would make a great....brace yourselves....
TCG.
Yup. Obeisance could act as a concept of a COST in a card game.
Combine that with the trippy ass ways each character could use their abilities, the character hierarchy (contracter, human, doll) and the sick weaponry that some contracters/dolls have (Hei's whip/blade is an example) and you could make a structurally stable card game.