Gyarados @ Flyinium Z  
Ability: Intimidate  
EVs: 136 HP / 108 Atk / 12 SpD / 252 Spe  
Adamant Nature  
- Waterfall  
- Bounce  
- Dragon Dance  
- Protect  

Marowak-Alola @ Thick Club  
Ability: Lightning Rod  
EVs: 168 HP / 216 Atk / 124 Spe  
Adamant Nature  
- Shadow Bone  
- Flare Blitz  
- Stealth Rock  
- Protect  

Latias-Mega @ Latiasite  
Ability: Levitate  
EVs: 196 HP / 96 SpA / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Psyshock  
- Calm Mind  
- Recover  

Breloom @ Focus Sash  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spore  
- Superpower  
- Bullet Seed  
- Protect  

Chansey @ Eviolite  
Ability: Healer  
EVs: 220 HP / 252 Def / 4 SpD / 32 Spe  
Bold Nature  
- Seismic Toss  
- Soft-Boiled  
- Toxic  
- Heal Pulse  

Tornadus-Therian @ Wiki Berry  
Ability: Regenerator  
EVs: 184 HP / 24 Def / 32 SpA / 16 SpD / 252 Spe  
Timid Nature  
- Hurricane  
- Heat Wave  
- U-turn  
- Tailwind  

Marowak: Outspeeds Krook in TW, jump point in Atk, dump in HP
Chansey: Outspeeds Gyara in TW, max Def, even HP, dump in SpD
Torn-T: max Speed, takes LO Naga Draco, hits a Regen HP number, takes CB Metagross Meteor Mash, dump in SpA