Silvally @ Life Orb  
Ability: RKS System  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Quiver Dance  
- Boomburst  
- Moongeist Beam  
- Sleep Powder  

Zygarde @ Dragonium Z  
Ability: Power Construct  
EVs: 24 HP / 252 Atk / 232 Spe  
Adamant Nature  
- Thousand Arrows  
- Dragon Dance  
- Shore Up  
- Dragon Hammer  

Groudon @ Red Orb  
Ability: Drought  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Shore Up  
- Stealth Rock  
- Eruption  
- Precipice Blades  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- King's Shield  
- Spectral Thief  
- Sunsteel Strike  
- Moonlight  

Mewtwo @ Mewtwonite X  
Ability: Unnerve  
EVs: 92 Atk / 164 Def / 252 Spe  
Jolly Nature  
- Bulk Up  
- Photon Geyser  
- Drain Punch  
- Substitute  

Chansey @ Eviolite  
Ability: Natural Cure  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Rapid Spin  
- Soft-Boiled  
- Heal Bell  
- Whirlwind