Eh... I tried making a team just to let her sweep. Scizor to take out Tar, Gengar and Azelf, Magnezone to dispatch of Scizor.
Though, I hear Latias would work extremely well in Mismagius's place because "I can already deal with her counters because I tried to cover Mismagius's counters."
I didn't post this in your RMT for soon-to-be-obvious reasons but why are you using Mismagius? Scizor coming into the metagame really hurts it...Mismagius just really gets raped an is inferior to other CM sweepers. Honestly Latias or Suicune would be a better choice.
EDIT: Even though Mismagius is insanely cool so props for using it anyway