Latias-Mega @ Latiasite  
Ability: Levitate  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Hidden Power [Fighting]  
- Thunder Wave  
- Roost  

Tornadus-Therian @ Rocky Helmet  
Ability: Regenerator  
Shiny: Yes  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
- Hurricane  
- Knock Off  
- U-turn  
- Defog  

Heatran (F) @ Leftovers  
Ability: Flash Fire  
Shiny: Yes  
EVs: 252 HP / 180 SpD / 76 Spe  
Calm Nature  
IVs: 0 Atk  
- Magma Storm  
- Earth Power  
- Toxic  
- Stealth Rock  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 224 SpD / 36 Spe  
Sassy Nature  
- Volt Switch  
- Fleur Cannon  
- Focus Blast  
- Iron Head  

Gastrodon (F) @ Leftovers  
Ability: Storm Drain  
Shiny: Yes  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
- Scald  
- Recover  
- Toxic  
- Earthquake  

Gliscor (F) @ Toxic Orb  
Ability: Poison Heal  
Shiny: Yes  
EVs: 244 HP / 244 SpD / 20 Spe  
Jolly Nature  
- Swords Dance  
- Roost  
- Facade  
- Earthquake