add a menu you where you can sell qi for tc not to players but to the game and make one qi worth at least 70 tc

no, you cannot sell your own qi to the game lol
qi = amount of games played

not supported

Not supported.

1 qi is 1 game played, and 1 game won is 10 tc on public servers so why would it ever be 70 tc?
if you're that hungry for tc just grind tourneys, buy tc, or win events.