Black diamond (god slayers) (Derpy platypus)

meet black diamond the outcast of the diamonds she was banished after she failed to shut down sulphorites own kindergarten when he was making an army she is the strongest diamond and now works for whichever side is most rewarding the white orb she is holding is her gem which is detachable from her body it can transform into any weapon she pleases it is harder than the diamonds gem so it cant be broken when used as a weapon aside from brief time periods