Tsareena @ Mago Berry  
Ability: Queenly Majesty  
EVs: 224 HP / 56 Atk / 4 Def / 60 SpD / 164 Spe  
Adamant Nature  
- Power Whip  
- Toxic  
- Rapid Spin  
- Helping Hand  

Moltres @ Flyinium Z  
Ability: Flame Body  
EVs: 248 HP / 72 Def / 64 SpA / 28 SpD / 96 Spe  
Modest Nature  
IVs: 0 Atk  
- Hurricane  
- Fire Blast  
- Tailwind  
- Protect  

Gyarados-Mega @ Gyaradosite  
Ability: Intimidate  
EVs: 120 HP / 136 Atk / 252 Spe  
Adamant Nature  
- Waterfall  
- Crunch  
- Dragon Dance  
- Protect  

Metagross @ Figy Berry  
Ability: Clear Body  
EVs: 244 HP / 104 Atk / 84 SpD / 76 Spe  
Adamant Nature  
- Iron Head  
- Zen Headbutt  
- Stealth Rock  
- Protect  

Kyurem @ Assault Vest  
Ability: Pressure  
EVs: 248 HP / 80 SpA / 32 SpD / 148 Spe  
Modest Nature  
- Ice Beam  
- Glaciate  
- Earth Power  
- Dragon Tail  

Thundurus-Therian @ Choice Specs  
Ability: Volt Absorb  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Sludge Bomb  
- Volt Switch  
- Incinerate  

Moltres: OHKOes AV Tsareena with SSSS / 252 HP Metagross with Fire Blast, outspeeds Adamant Metagross, takes LO Naganadel Draco, dump in Def
Mega Gyara: KOes standard Tsareena with +1 Waterfall into +1 Crunch, creeps Skymin at +1, dump in HP