Garchomp @ Leftovers  
Ability: Rough Skin  
EVs: 188 HP / 68 Def / 96 SpD / 156 Spe  
Careful Nature  
- Stealth Rock  
- Earthquake  
- Dragon Tail  
- Flamethrower  

Tornadus-Therian @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
- Hurricane  
- Knock Off  
- U-turn  
- Defog  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Shift Gear  
- Thunderbolt  
- Ice Beam  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 92 Def / 164 SpD  
Sassy Nature  
IVs: 0 Spe  
- Spikes  
- Power Whip  
- Leech Seed  
- Gyro Ball  

Lopunny-Mega (F) @ Lopunnite  
Ability: Limber  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Power-Up Punch  
- Return  
- High Jump Kick  
- Ice Punch  

Tapu Lele @ Psychium Z  
Ability: Psychic Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock  
- Moonblast  
- Calm Mind  
- Hidden Power [Fire]  

OR

Alakazam-Mega @ Alakazite  
Ability: Magic Guard  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Psychic  
- Shadow Ball  
- Focus Blast  
- Recover