With all this tiering/shadow tag being OP stuff aside, I think a colbur berry shanderaa would be a very effective set. It checks many possible threats, such as a lead machamp or tyranitar.
Shanderaa@Colbur berry
Timid Nature (+spd, -att)
4 def/252 sp att/252 spd
-Calm Mind
-Fire Blast
-Shadow Ball
-HP Ground
By running a colbur berry, shanderaa could switch into a fighting move from machamp and be able to set up a CM while taking a payback nicely. This could work even after you have trapped and killed a certain member of the opponents team and he sends out a scarf-tar to revenge kill. Assuming you still have your berry, and maybe even a CM, you could take a pursuit/crunch, OHKO w/ HP ground and continue to sweep. Just a suggestion, but I think a Shanderaa that can handle potential counters is pretty epic :D
Shanderaa@Colbur berry
Timid Nature (+spd, -att)
4 def/252 sp att/252 spd
-Calm Mind
-Fire Blast
-Shadow Ball
-HP Ground
By running a colbur berry, shanderaa could switch into a fighting move from machamp and be able to set up a CM while taking a payback nicely. This could work even after you have trapped and killed a certain member of the opponents team and he sends out a scarf-tar to revenge kill. Assuming you still have your berry, and maybe even a CM, you could take a pursuit/crunch, OHKO w/ HP ground and continue to sweep. Just a suggestion, but I think a Shanderaa that can handle potential counters is pretty epic :D