Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Pressure  
Tera Type: Psychic  
EVs: 88 Def / 204 SpA / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Focus Blast  
- Nasty Plot  
- Substitute  

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

Groudon-Primal @ Red Orb  
Ability: Drought  
Tera Type: Ground  
EVs: 248 HP / 112 Atk / 140 Def / 8 SpD  
Impish Nature  
- Precipice Blades  
- Stone Edge  
- Swords Dance  
- Stealth Rock  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 176 Atk / 20 Def / 56 SpD / 8 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Defog  
- Whirlwind  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Water  
EVs: 208 HP / 252 Def / 48 Spe  
Impish Nature  
- Coil  
- Glare  
- Thousand Arrows  
- Rest  

Fezandipiti @ Leftovers  
Ability: Toxic Chain  
Tera Type: Grass  
EVs: 248 HP / 44 Def / 216 SpD  
Calm Nature  
- U-turn  
- Roost  
- Icy Wind  
- Acid Spray