Goroka (Gyarados) @ Chesto Berry  
Ability: Intimidate  
EVs: 116 HP / 252 Atk / 140 Spe  
Adamant Nature  
IVs: 26 SpA / 26 SpD / 30 Spe  
- Hidden Power [Flying]  
- Earthquake  
- Dragon Dance  
- Rest  

Drimoto (Latias) (F) @ Leftovers  
Ability: Levitate  
EVs: 252 HP / 252 Def / 4 Spe  
Bold Nature  
IVs: 0 Atk  
- Light Screen  
- Reflect  
- Helping Hand  
- Recover  

Big Bone (Marowak) @ Thick Club  
Ability: Lightning Rod  
EVs: 88 HP / 252 Atk / 168 Spe  
Adamant Nature  
IVs: 30 Def / 23 SpA / 30 SpD / 30 Spe  
- Earthquake  
- Hidden Power [Rock]  
- Protect  
- Perish Song  

Oniiros (Latios) (M) @ Lum Berry  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
- Psychic  
- Dragon Claw  
- Thunderbolt  
- Ice Beam