Mewtwo-Mega-X @ Mewtwonite X  
Ability: Steadfast  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Low Kick  
- Zen Headbutt  
- Stone Edge  
- Ice Beam  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 252 SpD  
Sassy Nature  
- Precipice Blades  
- Overheat  
- Stealth Rock  
- Toxic  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 104 HP / 252 SpA / 8 SpD / 144 Spe  
Modest Nature  
IVs: 0 Atk  
- Origin Pulse  
- Ice Beam  
- Substitute  
- Calm Mind  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 252 Spe  
Jolly Nature  
- Photon Geyser  
- Sunsteel Strike  
- Swords Dance  
- Earthquake  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Toxic  
- Defog  
- Recover  

Zygarde-Complete @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Thousand Arrows  
- Dragon Tail  
- Glare  
- Rest