Successor (Thundurus) (M) @ Leftovers  
Ability: Wonder Guard  
EVs: 56 HP / 200 Def / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Chatter  
- Substitute  
- Taunt  
- Baton Pass  

Starfall (Rayquaza-Mega) @ Shed Shell  
Ability: Mold Breaker  
Shiny: Yes  
EVs: 92 HP / 252 SpA / 164 Spe  
Modest Nature  
IVs: 0 Atk  
- Quiver Dance  
- Oblivion Wing  
- Substitute  
- Dark Void  

Cobalt (Registeel) @ Shed Shell  
Ability: Magic Bounce  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Defog  
- King's Shield  
- Icicle Spear  
- Recover  

Crystal (Audino-Mega) @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Parting Shot  
- Chatter  
- Aromatherapy  

Surge (Gyarados-Mega) @ Lum Berry  
Ability: Huge Power  
EVs: 180 HP / 252 Atk / 76 Spe  
Adamant Nature  
- Water Shuriken  
- Pursuit  
- Gear Grind  
- Ice Shard  

Overlord (Mewtwo-Mega-X) @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 Atk / 212 Def / 44 Spe  
Naughty Nature  
- Dragon Ascent  
- Ice Punch  
- Close Combat  
- Steam Eruption