Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Insomnia  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Ice Beam  
- Psystrike  
- Fire Blast  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
EVs: 240 HP / 172 Def / 96 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Recover  
- Judgment  
- Refresh  

Arceus-Poison @ Poisonium Z  
Ability: Multitype  
EVs: 248 HP / 172 SpD / 88 Spe  
Careful Nature  
- Poison Jab  
- Recover  
- Will-O-Wisp  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 252 SpD  
Careful Nature  
- Stealth Rock  
- Toxic  
- Fire Punch  
- Rest  

Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Substitute  
- Leech Seed  
- Protect  
- Flame Charge  

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