Skarmory @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 232 Def / 24 Spe  
Impish Nature  
- Toxic Spikes  
- Whirlwind  
- Roost  
- U-turn  

Landorus (M) @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Dragon Ascent  
- Thousand Waves  
- Encore  
- Parting Shot  

Ho-Oh @ Toxic Orb  
Ability: Magic Guard  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
- Flare Blitz  
- Recover  
- Psycho Shift  
- Defog  

Gyarados @ Safety Goggles  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Recover  
- Aromatherapy  
- King's Shield  

Aerodactyl-Mega @ Choice Band  
Ability: Shadow Tag  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Ascent  
- Diamond Storm  
- Thousand Arrows  
- U-turn  

Rayquaza-Mega @ Focus Sash  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Shell Smash  
- Dragon Ascent  
- Sacred Fire  
- Thousand Arrows