Zygarde-Complete @ Iapapa Berry  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Electrify  
- Encore  
- Perish Song  
- Thousand Waves  

Mewtwo-Mega-Y @ Mago Berry  
Ability: Innards Out  
EVs: 252 HP / 252 SpA / 252 Spe  
Hasty Nature  
IVs: 0 Atk / 0 Def / 0 SpD  
- Spikes  
- Taunt  
- Heal Order  
- Volt Switch  

Slowbro-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Whirlwind  
- Stealth Rock  
- Will-O-Wisp  
- Recover  

Groudon-Primal @ Earth Plate  
Ability: Mold Breaker  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Shell Smash  
- V-create  
- Judgment  
- Bolt Strike  

Sableye-Mega @ Ghostium Z  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Spectral Thief  
- Recover  
- Defog  
- Parting Shot  

Mewtwo-Mega-X @ Protective Pads  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Shell Smash  
- Photon Geyser  
- Sunsteel Strike  
- Drain Punch