Thundurus @ Flyinium Z  
Ability: Defiant  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Wild Charge  
- Fly  
- Superpower  
- Protect  

Gigalith @ Aguav Berry  
Ability: Sand Stream  
EVs: 252 HP / 216 Atk / 40 SpD  
Adamant Nature  
IVs: 29 Spe  
- Stone Edge  
- Stomping Tantrum  
- Stealth Rock  
- Wide Guard  

Excadrill @ Life Orb  
Ability: Sand Rush  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Earthquake  
- Iron Head  
- Swords Dance  
- Protect  

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

Arcanine @ Figy Berry  
Ability: Intimidate  
EVs: 164 HP / 96 Atk / 248 Spe  
Adamant Nature  
- Flare Blitz  
- Extreme Speed  
- Roar  
- Protect  

Tsareena @ Iapapa Berry  
Ability: Queenly Majesty  
EVs: 224 HP / 56 Atk / 4 Def / 24 SpD / 200 Spe  
Adamant Nature  
- Power Whip  
- Knock Off  
- Helping Hand  
- U-turn  

Gigalith: Underspeeds all Alolan Marowak, Atk jump point and a dump in SpD
Mega Latias: KOes offensive Thund with Ice Beam after SR
Arcanine: Outspeeds all Gyarados, Atk jump point and a dump in HP
Tsareena: Outspeeds +1 Meloetta in TW