Heatran @ Latiasite  
Ability: Flash Fire  
EVs: 252 HP / 144 Def / 112 Spe  
Bold Nature  
IVs: 0 Atk  
- Flash Cannon  
- Lava Plume  
- Toxic  
- Stealth Rock  

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

Raikou @ Red Orb  
Ability: Pressure  
Shiny: Yes  
EVs: 4 Def / 252 SpA / 252 Spe  
Rash Nature  
IVs: 0 Atk  
- Weather Ball  
- Thunderbolt  
- Volt Switch  
- Calm Mind  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 8 Atk / 248 Def / 252 SpA  
Quiet Nature  
- Draco Meteor  
- Shadow Ball  
- Shadow Sneak  
- Defog  

Blissey (F) @ Sablenite  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpA  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Toxic  
- Heal Bell  
- Soft-Boiled  

Zygarde @ Altarianite  
Ability: Aura Break  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Extreme Speed  
- Facade  
- Superpower  
- Dragon Dance