Yveltal @ Black Glasses  
Ability: Adaptability  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Revelation Dance  
- Oblivion Wing  
- Quiver Dance  
- Baneful Bunker  

Magearna @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Spectral Thief  
- Moonblast  
- Rapid Spin  
- Volt Switch  

Groudon @ Red Orb  
Ability: Download  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- V-create  
- Thousand Arrows  
- Shift Gear  
- Strength Sap  

Zygarde-Complete @ Groundium Z  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Haze  
- Shore Up  
- Entrainment  
- Thousand Waves  

Mewtwo-Mega-Y @ Leftovers  
Ability: Queenly Majesty  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Photon Geyser  
- Moonblast  
- Secret Sword  
- Strength Sap  

Gengar-Mega @ Spooky Plate  
Ability: Teravolt  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Pursuit  
- Secret Sword  
- Tail Glow