Necrozma-Dusk-Mane @ Solganium Z  
Ability: Prism Armor  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
IVs: 0 Spe  
- Sunsteel Strike  
- Earthquake  
- Swords Dance  
- Trick Room  

Heracross-Mega @ Life Orb  
Ability: Skill Link  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
IVs: 0 Spe  
- Pin Missile  
- Close Combat  
- Bullet Seed  
- Rock Blast  

Reuniclus @ Focus Sash  
Ability: Magic Guard  
EVs: 4 HP / 252 Atk / 252 SpA  
Quiet Nature  
IVs: 0 Spe  
- Psychic  
- Explosion  
- Focus Blast  
- Trick Room  

Mawile-Mega @ Life Orb  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 8 SpD  
Brave Nature  
IVs: 0 Spe  
- Play Rough  
- Iron Head  
- Brick Break  
- Sucker Punch  

Diancie-Mega @ Focus Sash  
Ability: Magic Bounce  
EVs: 4 HP / 252 Atk / 252 SpA  
Brave Nature  
IVs: 0 Spe  
- Moonblast  
- Explosion  
- Protect  
- Trick Room  

Slowbro-Mega @ Life Orb  
Ability: Shell Armor  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Surf  
- Psychic  
- Ice Beam  
- Trick Room