Although we do not know how many there actually are…In any case, don't lose, Quartet Five!
Ability / Effect:
You may only cast this card if there are 3 or more different 《Quartet Five》 in your drop zone. [Cast Cost] [Pay 4 gauge] Deal 3 damage to your opponent! If there are 9 or more different «Quartet Five» in your drop zone, destroy all cards on your opponent's field and deal 5 damage to your opponent instead! Then, return all cards from your drop zone to your deck, and shuffle your deck.