Block, and guess his next move. Rock paper scissors at that point. From 5D~A, i can do another 5D, guess you're jumping and do 6D/623D (if im confident you will), dive in (and from there i can j.5A or go for air grab), or spider-man in the air (ctrl). If they dive, you'll have to AA quickly or you'll get hit first. Really, i think i have more trouble if the opponent just dashes in while blocking incoming chains. They'll eventually get to me and i'll have to get away/block.
Though, i'm no expert as hazama or makoto so i believe asking the other two or other players for advice would help more.
This works too.