Take out mushana and put in zecrom!
PS. your team is really good!
all i had was
Ladian
Drapion
Emboar
Druddigon
Dustox
Krookodile
oh and when you beat the elite 4 got to the victory road and challenge cheren and marshal
will come up and say you need to remach the e 4 and they are really hard!
hope i helped!