Medicham mega

Medicham-Mega @ Medichamite
Ability: Pure Power
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- High Jump Kick
- Fake Out
- Ice Punch
- Thunder Punch

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 248 HP / 200 Def / 60 SpD
Bold Nature
IVs: 0 Atk
- Defog
- Taunt
- Nature's Madness
- Moonblast

Volcarona @ Firium Z
Ability: Flame Body
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Quiver Dance
- Fire Blast
- Hidden Power [Ice]
- Giga Drain

Zygarde @ Choice Band
Ability: Aura Break
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Thousand Arrows
- Extreme Speed
- Outrage
- Stone Edge

Greninja @ Choice Scarf
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- U-turn
- Gunk Shot
- Hydro Pump
- Ice Beam

Tapu Koko @ Magnet
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Volt Switch
- Thunderbolt
- Hidden Power [Ice]
- U-turn