Arghonaut @ Leftovers  
Ability: Unaware  
EVs: 248 HP / 164 Def / 96 SpD  
Careful Nature  
- Spikes  
- Knock Off  
- Circle Throw  
- Recover  

Garchomp-Mega @ Garchompite  
Ability: Sand Force  
EVs: 4 Atk / 252 SpA / 252 Spe  
Mild Nature  
- Earthquake  
- Draco Meteor  
- Fire Blast  
- Stealth Rock  

Tapu Koko @ Shuca Berry  
Ability: Electric Surge  
EVs: 248 HP / 44 Def / 216 Spe  
Timid Nature  
- U-turn  
- Thunderbolt  
- Roost  
- Hidden Power [Ice]  

Heatran @ Firium Z  
Ability: Flash Fire  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Magma Storm  
- Earth Power  
- Taunt  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
EVs: 112 HP / 200 Def / 196 Spe  
Jolly Nature  
- U-turn  
- Earthquake  
- Hidden Power [Ice]  
- Punishment  

Chansey @ Eviolite  
Ability: Natural Cure  
EVs: 240 HP / 252 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Counter  
- Soft-Boiled  
- Thunder Wave