Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 8 Atk / 248 SpA / 252 Spe  
Hasty Nature  
- Moonblast  
- Diamond Storm  
- Earth Power  
- Protect  

Weavile @ Choice Band  
Ability: Pressure  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Icicle Crash  
- Pursuit  
- Ice Shard  

Magnezone @ Choice Scarf  
Ability: Magnet Pull  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk / 30 SpA / 30 Spe  
- Volt Switch  
- Hidden Power [Fire]  
- Flash Cannon  
- Thunderbolt  

Landorus-Therian (M) @ Rocky Helmet  
Ability: Intimidate  
EVs: 240 HP / 252 Def / 16 SpD  
Impish Nature  
IVs: 29 Spe  
- Earthquake  
- Stealth Rock  
- U-turn  
- Rock Tomb  

Latios (M) @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Psyshock  
- Trick  
- Defog  

Serperior @ Chesto Berry  
Ability: Contrary  
EVs: 80 HP / 176 SpA / 252 Spe  
Timid Nature  
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe  
- Leaf Storm  
- Hidden Power [Rock]  
- Glare  
- Rest