I think it's time for you to use a real BH team :] This team has been consistent at top of the ladder
https://pastebin.com/GuB4ujRv
CB Tinted Lens P-Don w/ V-Create, Psychic Surge Specs MMY, Shell Smash Galvanize Zekrom, complete with a solid defensive core that imposter-proofs all of your Pokemon
EDIT: if you want rocks put it over U-turn on Giratina :P
https://pastebin.com/GuB4ujRv
CB Tinted Lens P-Don w/ V-Create, Psychic Surge Specs MMY, Shell Smash Galvanize Zekrom, complete with a solid defensive core that imposter-proofs all of your Pokemon
EDIT: if you want rocks put it over U-turn on Giratina :P