Latias-Mega (F) @ Latiasite  
Ability: Levitate  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Calm Mind  
- Psyshock  
- Ice Beam  

Gastrodon @ Leftovers  
Ability: Storm Drain  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Earthquake  
- Scald  
- Recover  
- Toxic  

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

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Magma Storm  
- Earth Power  
- Stealth Rock  
- Taunt  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 170 Def / 86 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Recover  
- Toxic Spikes  
- Haze  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 248 HP / 28 Def / 232 SpD  
Calm Nature  
IVs: 6 Spe  
- Heart Swap  
- Pain Split  
- Volt Switch  
- Flash Cannon