Scarf Latios

Heatran @ Leftovers
Ability: Flash Fire
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
IVs: 0 Atk
- Magma Storm
- Toxic
- Stealth Rock
- Earth Power

Urshifu @ Choice Band
Ability: Unseen Fist
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Poison Jab
- Close Combat
- Wicked Blow
- Sucker Punch

Latios @ Choice Scarf
Ability: Levitate
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psyshock
- Mystical Fire
- Draco Meteor
- Trick

Hippowdon (M) @ Leftovers
Ability: Sand Stream
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Stealth Rock
- Earthquake
- Whirlwind
- Slack Off

Tapu Fini @ Heavy-Duty Boots
Ability: Misty Surge
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Scald
- Taunt
- Moonblast
- Defog

Pheromosa @ Life Orb
Ability: Beast Boost
EVs: 252 Atk / 4 SpA / 252 Spe
Hasty Nature
- Poison Jab
- U-turn
- Ice Beam
- Close Combat