Latios-Mega (M) @ Latiosite  
Ability: Levitate  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Psychic  
- Ice Beam  
- Earthquake  
- Roost  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 232 SpD / 24 Spe  
Calm Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Scald  
- Haze  
- Recover  

Skarmory @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 232 Def / 24 Spe  
Bold Nature  
IVs: 0 Atk  
- Spikes  
- Whirlwind  
- Roost  
- Defog  

Seismitoad @ Leftovers  
Ability: Water Absorb  
EVs: 240 HP / 36 Def / 216 SpD / 16 Spe  
Careful Nature  
- Stealth Rock  
- Earthquake  
- Knock Off  
- Refresh  

Magearna @ Fairium Z  
Ability: Soul-Heart  
EVs: 248 HP / 28 Def / 212 SpA / 8 SpD / 12 Spe  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Pain Split  
- Fleur Cannon  
- Thunderbolt  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
IVs: 0 Atk