Semi vs Steevee

Flat Stanley (Kartana)
Ability: Beast Boost
EVs: 252 HP / 128 Def / 128 SpD
Impish Nature
- Swords Dance
- Leaf Blade
- Sacred Sword
- Synthesis

Headache (Slowking) @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 252 SpA / 8 SpD
Quiet Nature
IVs: 0 Atk / 19 Spe
- Focus Blast
- Ice Beam
- Psychic
- Scald

One Punch Man (Buzzwole) @ Expert Belt
Ability: Beast Boost
EVs: 48 HP / 252 Atk / 208 Spe
Adamant Nature
- Hammer Arm
- Hidden Power [Flying]
- Poison Jab
- Leech Life

Fred Dagg (Whimsicott) @ Leftovers
Ability: Prankster
EVs: 44 HP / 184 Def / 252 SpA / 28 SpD
Modest Nature
IVs: 0 Atk / 8 Spe
- Moonblast
- Substitute
- Leech Seed
- Taunt

DON DADDY MIDNITE (Guzzlord) @ Leftovers
Ability: Beast Boost
EVs: 248 Atk / 184 Def / 76 Spe
Adamant Nature
- Crunch
- Hammer Arm
- Earthquake
- Toxic

Megumin (Mismagius) @ Leftovers
Ability: Levitate
EVs: 172 HP / 220 SpA / 8 SpD / 108 Spe
Timid Nature
IVs: 0 Atk
- Substitute
- Calm Mind
- Thunderbolt
- Shadow Ball