Zygarde-Complete @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 84 Def / 172 SpD  
Impish Nature  
- Rest  
- Glare  
- Thousand Arrows  
- Dragon Tail  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 8 SpA / 252 SpD  
Sassy Nature  
- Toxic  
- Overheat  
- Stone Edge  
- Precipice Blades  

Gengar-Mega @ Gengarite  
Ability: Cursed Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Hex  
- Sludge Wave  
- Taunt  

Arceus-Flying @ Sky Plate  
Ability: Multitype  
EVs: 248 HP / 48 SpA / 212 Spe  
Modest Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Refresh  
- Calm Mind  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Sunsteel Strike  
- Stealth Rock  
- Toxic  
- Morning Sun  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Aromatherapy  
- Hidden Power [Ground]  
- Defog  
- Moonblast