I don't own a third Maxx "C", nor any Ghost Belle, so had to test out some other cards. Gnomaterial surprised me how useful it is in the current meta. Alpha is a nasty board breaker for this deck (especially since it also bounces itself back to the hand so it can be revealed by any VS monster again) and Sneaky "C" came up hard in some games too. I am unsure which of the three I favoured the most, but I still think 3 GB's are better.