Kartana @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
IVs: 30 HP  
- Spore  
- Sunsteel Strike  
- Extreme Speed  
- Power Whip  

Groudon-Primal @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
IVs: 30 HP  
- Let's Snuggle Forever  
- V-create  
- Thousand Arrows  
- Trick  

Blissey (F) @ Choice Scarf  
Ability: Innards Out  
EVs: 252 HP / 252 SpD / 252 Spe  
Hasty Nature  
IVs: 0 Atk / 0 Def  
- Trick  
- Final Gambit  
- Recover  
- Stealth Rock  

Audino-Mega @ Safety Goggles  
Ability: Wonder Guard  
Level: 99  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 30 HP / 0 Spe  
- U-turn  
- Roost  
- Spectral Thief  
- Defog  

Slowbro-Mega @ Shed Shell  
Ability: Arena Trap  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 30 HP / 0 Atk  
- Shore Up  
- Perish Song  
- King's Shield  
- Scald  

Heatran @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Lava Plume  
- Aromatherapy  
- Parting Shot  
- Roost