Dialga @ Assault Vest  
Ability: Pressure  
EVs: 252 HP / 4 Atk / 252 SpD  
Sassy Nature  
- Iron Head  
- Dragon Tail  
- Earthquake  
- Stone Edge  

Groudon @ Red Orb  
Ability: Drought  
EVs: 252 HP / 56 Def / 200 SpD  
Relaxed Nature  
- Stealth Rock  
- Precipice Blades  
- Overheat  
- Toxic  

Gengar @ Gengarite  
Ability: Cursed Body  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Focus Blast  
- Shadow Ball  
- Sludge Wave  
- Substitute  

Marshadow @ Life Orb  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Shadow Sneak  
- Spectral Thief  
- Close Combat  
- Rock Tomb  

Ho-Oh @ Leftovers  
Ability: Regenerator  
EVs: 252 HP / 204 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Recover  
- Toxic  
- Brave Bird  

Cloyster @ Leftovers  
Ability: Shell Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Spikes  
- Toxic Spikes  
- Rapid Spin  
- Icicle Spear