Beedrill-Mega @ Black Sludge  
Ability: Wonder Guard  
EVs: 252 HP / 4 SpD / 252 Spe  
Jolly Nature  
- Taunt  
- U-turn  
- Spikes  
- Will-O-Wisp  

Gyarados-Mega @ Black Glasses  
Ability: Huge Power  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Water Shuriken  
- Pursuit  
- Sucker Punch  
- Knock Off  

Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Recover  
- Encore  
- Destiny Bond  

Groudon-Primal @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- V-create  
- Thousand Arrows  
- Power Whip  
- Switcheroo  

Blissey (F) @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Defog  
- Aromatherapy  
- Parting Shot  
- Recover  

Rayquaza-Mega @ Choice Specs  
Ability: Mold Breaker  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Aeroblast  
- Oblivion Wing  
- Volt Switch  
- Spacial Rend