No Debuffing Allowed! (VGC2020)

Gyarados @ Choice Band
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Waterfall
- Power Whip
- Bounce
- Stone Edge

Rotom-Heat @ Choice Specs
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Overheat
- Volt Switch
- Thunderbolt
- Trick

Dragapult @ Dragon Fang
Ability: Clear Body
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Dragon Darts
- Phantom Force
- Will-O-Wisp
- Dragon Dance

Corviknight @ Sitrus Berry (or Sharp Beak)
Ability: Pressure
EVs: 100 HP / 188 Atk / 60 Def / 96 SpD / 64 Spe
Impish Nature
- Iron Head
- Brave Bird
- Tailwind
- Protect

Hitmontop (M) @ White Herb
Ability: Intimidate
EVs: 252 HP / 116 Atk / 124 Def / 12 SpD / 4 Spe
Adamant Nature
- Close Combat
- Fake Out
- Feint
- Protect

Hatterene (F) @ Leftovers
Ability: Magic Bounce
EVs: 212 HP / 48 Def / 76 SpA / 172 SpD
Modest Nature
IVs: 0 Atk
- Psychic
- Dazzling Gleam
- Calm Mind
- Protect