What should I add in my Nat Dex squad to beat Regen Slack off Rocky helmet Slowbro here is my team

Question

Lopunny-Mega (F) @ Lopunnite
Ability: Scrappy
Shiny: Yes
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Fake Out
- Magic Coat
- Close Combat
- Ice Punch

Ambipom (M) @ King's Rock
Ability: Technician
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Fling
- Fake Out
- Aerial Ace
- U-turn

Dragonite (M) @ Weakness Policy
Ability: Multiscale
EVs: 4 HP / 252 Atk / 252 Spe
- Dragon Claw
- Extreme Speed
- Dragon Dance
- Fire Punch

Torkoal (M) @ Sitrus Berry
Ability: Drought
Shiny: Yes
EVs: 252 HP / 144 Def / 112 SpD
Sassy Nature
IVs: 0 Atk
- Flamethrower
- Rapid Spin
- Stealth Rock
- Yawn

Cofagrigus (F) @ Red Card
Ability: Mummy
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Bold Nature
IVs: 0 Atk
- Magic Coat
- Will-O-Wisp
- Hex
- Toxic Spikes

Staraptor @ Choice Scarf
Ability: Reckless
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Brave Bird
- Double-Edge
- Close Combat
- Defog

Comments

I don't want to suggest Decidueye for NatDex OU but Long Reach + Knock Off.

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You need a Special Attacker tbh

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I don't understand why u need magic coat on lopunny. And I would say triple axel is better than ice punch

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I'd say hydriegon is your best bet. Maybe this set?
Hydriegon @ Darkinium Z
Ability: Levitate
EVs:4 HP/252 SpA/252 Spe
Timid Nature
-Nasty Plot
-Flash Cannon
-Dark Pulse
-Dragon Pulse