Urshifu @ Choice Band
Ability: Unseen Fist
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Wicked Blow
- Sucker Punch
- U-turn
- Close Combat
Magnezone @ Choice Specs
Ability: Magnet Pull
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunderbolt
- Volt Switch
- Flash Cannon
- Steel Beam
Rillaboom @ Grassy Seed
Ability: Grassy Surge
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Grassy Glide
- Swords Dance
- Acrobatics
- High Horsepower
Chansey @ Eviolite
Ability: Natural Cure
EVs: 4 HP / 252 Def / 252 SpD
Impish Nature
- Teleport
- Toxic
- Soft-Boiled
- Seismic Toss
Clefable @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Wish
- Protect
- Moonblast
- Stealth Rock
Mandibuzz (F) @ Heavy-Duty Boots
Ability: Overcoat
EVs: 252 HP / 252 Def / 4 SpD
- Roost
- U-turn
- Defog
- Foul Play
Just edited after watching pro players play with some pokemon and after hearing your advice.