It looks like no one has grass on the left(Diamond and Pearl?)...but it doesn't show it's open. If Grass on the Diamond and Pearl side is open...I'd like to try and sign up for it(need to figure out how).
So can I go for Grass in Diamond? If so...how do I sign up? I do have wifi and a team of 6 Grass Pokemon that I feel is strong. Just tell me what to do.