Mega Diancie - OU

Shiro (Diancie-Mega) @ Diancite
Ability: Clear Body
EVs: 8 Atk / 248 SpA / 252 Spe
Naive Nature
- Diamond Storm
- Moonblast
- Hidden Power [Fire]
- Earth Power

Du Dudu e Edu (Dugtrio) @ Groundium Z
Ability: Arena Trap
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Screech
- Stone Edge
- Sucker Punch

Amy (Tapu Lele) @ Choice Scarf
Ability: Psychic Surge
EVs: 248 SpA / 8 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Moonblast
- Hidden Power [Fire]
- Focus Blast

Ricina (Toxapex) @ Eject Button
Ability: Regenerator
Shiny: Yes
EVs: 252 HP / 80 Def / 176 SpD
Sassy Nature
IVs: 0 Atk / 0 Spe
- Scald
- Haze
- Recover
- Toxic

Iron Bird (Skarmory) @ Shed Shell
Ability: Sturdy
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Roost
- Defog
- Stealth Rock
- Iron Head

Cabelinho (Tangrowth) (M) @ Assault Vest
Ability: Regenerator
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Sassy Nature
IVs: 0 Spe
- Hidden Power [Ice]
- Giga Drain
- Knock Off
- Earthquake