Mewtwo-Mega-X @ Mewtwonite X  
Ability: Steadfast  
Tera Type: Psychic  
EVs: 28 Atk / 228 SpA / 252 Spe  
Naive Nature  
- Low Kick  
- Psychic  
- Stone Edge  
- Nasty Plot  

Groudon-Primal @ Red Orb  
Ability: Drought  
Tera Type: Ground  
EVs: 248 HP / 56 Def / 204 SpD  
Relaxed Nature  
- Spikes  
- Precipice Blades  
- Overheat  
- Toxic  

Marshadow @ Choice Band  
Ability: Technician  
Tera Type: Ghost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Low Kick  
- Poltergeist  
- Spectral Thief  
- Shadow Sneak  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
Tera Type: Water  
EVs: 252 HP / 168 SpD / 88 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Taunt  
- Stealth Rock  
- Recover  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Fairy  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Coil  
- Thousand Arrows  
- Rest  
- Toxic  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Dark  
EVs: 248 HP / 204 Def / 56 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Whirlwind