Liepard @ Choice Band  
Ability: Prankster  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- Knock Off  
- Pursuit  
- Trick / Sucker Punch

Liepard @ Damp Rock
Ability: Prankster  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Rain Dance  
- Taunt / Encore
- Knock Off  
- U-turn  

Liepard @ Leftovers
Ability: Prankster  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Nasty Plot  
- Copycat 
- Dark Pulse  
- Substitute / Encore

Other Move Options: Seed Bomb, Play Rough, Sunny Day, Thunder Wave
Other Item Options: Life Orb, Choice Scarf, Heat Rock, Dread Plate
Notes: Liepard is an extremely versatile threat thanks to its plethora of viable sets such as Choice Band, Nasty Plot, and Weather Support. Having a good base Speed along with Prankster and a Psychic immunity allows it to cripple opponents and showcase its offensive prowess.
U-turn grants Liepard pivoting utility and pairs well with Choice and Weather variants.
Knock Off is Liepard's strongest Physical STAB and removes foes items if they lack Z-Crystals or Sticky Hold while Dark Pulse is its strongest Special STAB respectively.
Copycat allows Liepard to utilize Dark Pulse as a form of priority to revenge kill faster opponents such as Lycanroc, Raichu, and Dugtrio.
Encore locks opponents into set up or passive moves (hazards / status) while taunt prevents them. Prankster Rain Dance and Sunny Day ensures Liepard can set the weather quickly and provide 8 turns for supporting teammates.