Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Waterfall  
- Earthquake  
- Crunch  

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

Magearna @ Fairium Z  
Ability: Soul-Heart  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shift Gear  
- Fleur Cannon  
- Thunderbolt  
- Focus Blast  

Tangrowth @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 28 Def / 228 SpD  
Sassy Nature  
- Giga Drain  
- Knock Off  
- Hidden Power [Ice]  
- Earthquake  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
EVs: 80 HP / 148 Atk / 84 Def / 196 Spe  
Naive Nature  
- Earthquake  
- U-turn  
- Hidden Power [Ice]  
- Defog  

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
- Magma Storm  
- Earth Power  
- Taunt  
- Stealth Rock