Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Protect  
- Disable  
- Perish Song  
- Shadow Ball  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 56 Def / 200 SpD / 4 Spe  
Relaxed Nature  
- Stealth Rock  
- Precipice Blades  
- Dragon Tail  
- Stone Edge  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Volt Switch  
- Heart Swap  
- Heal Bell  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 248 HP / 208 SpA / 52 SpD  
Quiet Nature  
IVs: 0 Atk / 30 Spe  
- Defog  
- Hex  
- Toxic  
- Thunder Wave  

Arceus-Flying @ Sky Plate  
Ability: Multitype  
EVs: 248 HP / 124 Def / 136 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Recover  
- Judgment  
- Refresh  

Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Sacred Fire  
- Brave Bird  
- Defog  
- Toxic