You can increase your rank by doing evaluation duels(where you duel an evaluator, staff, co owner, or myself). You are allowed 1 evaluation duel every 4 days. However, if you fail to increase your rank passed F rank, you can eval again the following day. In order to become an S rank or higher, you have to either duel myself on DDX in a match(best 2 out of 3 duel), or duel 1 evaluator(same format) on DDX with another evaluator to spectate the duel. These S rank+ eval duels can only be done once every week(7 days). SSS rank is only obtainable through clan related events(will be announced in the deskord, which is linked on this page).