Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Photon Geyser  
- Calm Mind  
- Power Gem  
- Earth Power  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 252 SpD / 8 Spe  
Careful Nature  
- Precipice Blades  
- Stealth Rock  
- Roar  
- Fire Punch  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 252 HP / 64 Def / 192 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Defog  
- Toxic  
- Recover  

Ho-Oh @ Life Orb  
Ability: Regenerator  
EVs: 224 HP / 136 Atk / 72 SpD / 76 Spe  
Lonely Nature  
- Sacred Fire  
- Hidden Power [Ice]  
- Recover  
- Brave Bird  

Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Taunt  
- Sludge Wave  
- Destiny Bond  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Aromatherapy  
- Sleep Talk  
- Geomancy