Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Insomnia  
EVs: 8 HP / 80 Def / 228 SpA / 192 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Ice Beam  
- Fire Blast  
- Psystrike  

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

Arceus-Poison @ Poisonium Z  
Ability: Multitype  
EVs: 252 HP / 96 Atk / 160 SpD  
Sassy Nature  
- Poison Jab  
- Earth Power  
- Will-O-Wisp  
- Recover  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- X-Scissor  
- Earthquake  
- Photon Geyser  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Dragon Tail  
- Toxic  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
EVs: 248 HP / 164 Def / 96 Spe  
Jolly Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Will-O-Wisp  
- Defog