Charizard-Mega-Y @ Charizardite Y  
Ability: Blaze  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Flamethrower  
- Focus Blast  
- Hidden Power [Electric]  
- Roost  

Victini @ Choice Band  
Ability: Victory Star  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- V-create  
- U-turn  
- Bolt Strike  
- Brick Break  

Hydreigon @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Draco Meteor  
- Dark Pulse  
- U-turn  
- Earth Power  

Tapu Fini @ Leftovers  
Ability: Misty Surge  
EVs: 248 HP / 68 SpD / 192 Spe  
Calm Nature  
IVs: 0 Atk  
- Surf  
- Moonblast  
- Taunt  
- Defog  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 224 SpD / 36 Spe  
Sassy Nature  
- Volt Switch  
- Fleur Cannon  
- Focus Blast  
- Iron Head  

Tangrowth @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Giga Drain  
- Knock Off  
- Hidden Power [Ice]  
- Sleep Powder