Our team is looking a bit slow and needs some Speed-control. Having a check for Tapu Koko and Zeraora, both of which do really well vs our first 4 mons, would also be really nice. Having a U-turn user to form a Volt-turn core with Rotom would be neat, as well, which gives our Specs Kyurem even more opportunities to come in more safely. Lastly, an extra Ground-immunity for Heatran is always a nice addition. It's hella basic, but Choice Scarf Landorus-Therian compresses all of that into one team slot:
Landorus-Therian (M) @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- U-turn
- Stone Edge
- Knock Off / Stealth Rock
Earthquake, U-turn, and Stone Edge are really the only required moves, while the 4th slot is quite customizable. Having more Knock Off is always nice, but if we want to have our last team member not be a Stealth Rock user, our Scarf Landorus-T can bluff a non-Scarf set and run it, giving this mon even more utility.