Mewtwo-Mega-X @ Mewtwonite X  
Ability: Pressure  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Taunt  
- Low Kick  
- Recover  
- Ice Beam  

Necrozma-Dusk-Mane @ Solganium Z  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
- Swords Dance  
- Trick Room  
- Sunsteel Strike  
- Photon Geyser  

Ho-Oh @ Leftovers  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Sacred Fire  
- Toxic  
- Recover  
- Defog  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 132 HP / 252 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Recover  
- Toxic  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 248 HP / 252 SpD / 8 Spe  
Calm Nature  
IVs: 0 Atk  
- Heart Swap  
- Fleur Cannon  
- Volt Switch  
- Heal Bell  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 248 Def / 8 Spe  
Impish Nature  
- Stealth Rock  
- Swords Dance  
- Earthquake  
- Rock Tomb