Landorus-Therian @ Rocky Helmet  
Ability: Intimidate  
EVs: 252 HP / 216 Def / 24 SpD / 16 Spe  
Impish Nature  
- Stealth Rock  
- U-turn  
- Earthquake  
- Hidden Power [Ice]  

Kartana @ Choice Scarf  
Ability: Beast Boost  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Leaf Blade  
- Defog  
- Sacred Sword  
- Knock Off  

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Magma Storm  
- Toxic  
- Earth Power  

Latias-Mega @ Latiasite  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Ice Beam  
- Psyshock  
- Recover  

Tapu Koko @ Electrium Z  
Ability: Electric Surge  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Wild Charge  
- Taunt  
- U-turn  
- Hidden Power [Ice]  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Scald  
- Recover  
- Haze