So I literally put team together in 5 minutes by using common sets and synergy but it has proved to work really well
Medicham @ Medichamite
Ability: Pure Power
EVs: 252 Atk / 252 Spd / 4 HP
Adamant Nature
- Fake Out
- High Jump Kick
- Zen Headbutt
- Ice Punch
Fake out is free damage, hjk and Zen headbut are STAB and Ice punch is flying type coverage
Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 SAtk / 252 HP / 4 Spd
Modest Nature
- Fire Blast
- Flash Cannon
- Earth Power
- Stealth Rock
Fire Blast and Flash Cannon are STAB, Earth Power is fire coverage. Rocks are obvious. I was considering hp ice but I have 2 safe switches for ground moves
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 252 Spd / 4 HP
Adamant Nature
- Iron Head
- Knock Off
- Sucker Punch
- Swords Dance
Iron Head and Knock off are STAB whilst sp is STAB priority. SD makes Bisharp incredibly strong. 252 Speed makes it out speed Pokémon in the same speed tier such as Azumarill. You can also switch it in on obvious defogs or intimidate users such as Lando-T or Gyarados. Also, I considered using a lum berry over a life orb as their are many scald/will o wisp users and Bisharp is crippled by a burn
Azumarill @ Assault Vest
Ability: Huge Power
EVs: 252 Atk / 252 HP / 4 Spd
Adamant Nature
- Play Rough
- Waterfall
- Aqua Jet
- Knock Off
Play Rough and Waterfall are STAB and Aqua Jet is STAB priority. Knock off just because it's nice to get rid of items. Though I know that Superpower is also good on Azu for Steel type coverage
Latios @ Life Orb
Ability: Levitate
EVs: 252 SAtk / 252 Spd / 4 HP
Timid Nature
- Draco Meteor
- Psychic
- Hidden Power [Fire]
- Defog
Draco and Psychic are STAB, hp fire is steel coverage and defog is obvious
Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 252 Spd / 4 HP
Jolly Nature
- Earthquake
- Stone Edge
- U-turn
- Knock Off
EQ is STAB. Stone Edge is flying coverage. U turn supports Lando's "Hit and run" play style and knock off is general coverage and gets rid of items