Nihilego @ Choice Specs  
Ability: Beast Boost  
EVs: 176 SpA / 80 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Power Gem  
- Sludge Wave  
- Grass Knot  
- Sleep Talk  

Magneton @ Choice Scarf  
Ability: Magnet Pull  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Volt Switch  
- Thunderbolt  
- Flash Cannon  
- Hidden Power [Fire]  

Latias @ Psychium Z  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Calm Mind  
- Draco Meteor  
- Psychic  
- Recover  

Aggron @ Aggronite  
Ability: Sturdy  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Heavy Slam  
- Fire Punch  
- Stealth Rock  
- Roar  

Mantine @ Leftovers  
Ability: Water Absorb  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Roost  
- Defog  
- Toxic  

Heracross @ Flame Orb  
Ability: Guts  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Close Combat  
- Knock Off  
- Facade