Seems pretty solid already.
Dr Falkenstein would probably keep on getting banned.
Perhaps Belgosi? Carter/Manfred is also good -> they might even be better than Greem in some cases.
Eloxia might also be changed - Michael comes to mind. Thomas is also good against atk manips. Even Dwan may help with DR since you only have one (unless you change Belle to spiaghi or any other 2* DR from other clans).