Mimkyu Sand Offense

Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 144 Def / 112 SpD
Impish Nature
- Slack Off
- Whirlwind
- Earthquake
- Stealth Rock

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 88 Def / 168 SpD
Relaxed Nature
IVs: 0 Spe
- Spikes
- Gyro Ball
- Power Whip
- Leech Seed

Charizard-Mega-Y @ Charizardite Y
Ability: Drought
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Roost
- Solar Beam
- Focus Blast
- Flamethrower

Excadrill @ Life Orb
Ability: Sand Rush
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Iron Head
- Rapid Spin
- Rock Slide
- Earthquake

Greninja @ Life Orb
Ability: Protean
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Ice Beam
- Dark Pulse
- Hydro Pump
- Hidden Power [Fire]

Mimikyu @ Ghostium Z
Ability: Disguise
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Play Rough
- Shadow Claw
- Shadow Sneak
- Swords Dance