Charizard-Mega-X @ Charizardite X  
Ability: Tough Claws  
Level: 50  
EVs: 236 HP / 76 Atk / 4 Def / 4 SpD / 188 Spe  
Adamant Nature  
- Flare Blitz  
- Dragon Dance  
- Roost  
- Protect  

Venusaur-Mega @ Venusaurite  
Ability: Chlorophyll  
Level: 50  
EVs: 252 HP / 108 Def / 4 SpA / 132 SpD / 12 Spe  
Bold Nature  
IVs: 0 Atk  
- Sludge Bomb  
- Giga Drain  
- Leech Seed  
- Protect  

Tapu Fini @ Choice Specs  
Ability: Misty Surge  
Level: 50  
EVs: 236 HP / 4 Def / 84 SpA / 12 SpD / 164 Spe  
Modest Nature  
IVs: 0 Atk  
- Muddy Water  
- Moonblast  
- Haze  
- Trick  

Tapu Koko @ Electrium Z  
Ability: Electric Surge  
Level: 50  
EVs: 28 HP / 4 Def / 212 SpA / 12 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Dazzling Gleam  
- Volt Switch  
- Protect  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
Level: 50  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
- Earth Power  
- Sludge Bomb  
- U-turn  
- Hidden Power [Ice]  

Aegislash @ Leftovers  
Ability: Stance Change  
Level: 50  
EVs: 252 HP / 44 Def / 12 SpA / 100 SpD / 100 Spe  
Calm Nature  
IVs: 0 Atk  
- Shadow Ball  
- Toxic  
- Substitute  
- King's Shield