>>35001945Give it Trick Room, Gyro Ball, Earthquake, and Stone Edge, make the IVs 31/31/15/any/31/0, 252 EVs in HP and Atk, Lonely Nature, and give it Rockium.
Use it as a late game sweeper that spams Gyro Ball on non-resists and faster Pokemon. Keep Pokemon like Skarmory, Zapdos, and Celesteela that are slow and resists Gyro Ball at low health and try removing Landorus-T before the sweep. Use your Z move on them if you have to.
Good teammates consist of Pokemon capable of effectively removing Fighting types and Ground types, especially priority moves.