Slaking @ Leppa Berry  
Ability: Harvest  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Extreme Evoboost  
- Substitute  
- Searing Sunraze Smash  
- Shore Up  

Gengar-Mega @ Black Sludge  
Ability: No Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fissure  
- Trick  
- Sing  
- Baton Pass  

Groudon-Primal @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Thousand Arrows  
- Menacing Moonraze Maelstrom  
- First Impression  
- Trick  

Yveltal @ Toxic Orb  
Ability: Magic Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Pursuit  
- Spectral Thief  
- Baton Pass  
- Shore Up  

Heatran @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Perish Song  
- Defog  
- Spectral Thief  
- Shore Up  

Marowak-Alola @ Thick Club  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Fake Out  
- Shadow Sneak  
- V-create  
- Sunsteel Strike