Fun team

Dragonite @ Lum Berry
Ability: Multiscale
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Dragon Dance
- Extreme Speed
- Earthquake
- Dragon Claw

Marowak-Alola @ Thick Club
Ability: Lightning Rod
EVs: 240 HP / 16 Atk / 252 SpD
Careful Nature
- Will-O-Wisp
- Stealth Rock
- Shadow Bone
- Fire Punch

Greninja @ Normalium Z
Ability: Protean
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Hydro Pump
- Dark Pulse
- Ice Beam
- Happy Hour

Magearna @ Assault Vest
Ability: Soul-Heart
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
IVs: 0 Atk / 30 Spe
- Volt Switch
- Ice Beam
- Flash Cannon
- Fleur Cannon

tho (Diggersby) @ Choice Scarf
Ability: Huge Power
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Return
- Fire Punch
- U-turn

Tsareena @ Rocky Helmet
Ability: Queenly Majesty
EVs: 252 HP / 120 Atk / 120 Def / 4 SpD / 12 Spe
Impish Nature
- Trop Kick
- Synthesis
- Rapid Spin
- U-turn