shiny hunting with tyson

Amoonguss @ Black Sludge
Ability: Regenerator
EVs: 248 HP / 44 Def / 216 SpD
Calm Nature
IVs: 1 Atk
- Spore
- Giga Drain
- Hidden Power [Fire]
- Sludge Bomb

Aromatisse @ Leftovers
Ability: Aroma Veil
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Wish
- Protect
- Moonblast
- Toxic

Tapu Koko @ Life Orb
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- Dazzling Gleam
- Hidden Power [Fire]
- Roost

Shuckle @ Leftovers
Ability: Contrary
EVs: 252 HP / 252 Def / 4 SpD
Relaxed Nature
IVs: 0 Atk
- Toxic
- Infestation
- Rest
- Shell Smash