Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Toxic Spikes  
- Haze  
- Recover  

Magearna @ Choice Specs  
Ability: Soul-Heart  
EVs: 196 HP / 252 SpA / 4 SpD / 56 Spe  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Volt Switch  
- Trick  
- Focus Blast  

Garchomp @ Dragonium Z  
Ability: Rough Skin  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Outrage  
- Stealth Rock  
- Earthquake  
- Swords Dance  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 232 Def / 24 Spe  
Impish Nature  
IVs: 0 Atk  
- Spikes  
- Roost  
- Iron Defense  
- Body Press  

Landorus-Therian (M) @ Choice Scarf  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- Explosion  
- Defog  
- Earthquake  

Gardevoir-Mega @ Gardevoirite  
Ability: Trace  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hyper Voice  
- Psyshock  
- Calm Mind  
- Focus Blast