Galarian Mr. Rime · Darkness Ablaze (DAA) #036

Ability ⇢ Shuffle Dance
Once during your turn, you may switch 1 of your opponent’s face-down Prize cards with the top card of their deck. (The cards stay face down.)

{W}{C}{C} → Mad Party : 20×
This attack does 20 damage for each Pokémon in your discard pile that has the Mad Party attack.