noun
wild card (hanafuda); multi-purpose scoring card
In hanafuda, a card that can serve as more than one type for scoring combinations, such as the sake cup card or the November suit. Domain-specific term.
花札では、菊に盃の札が化け札として使われることがある。
In hanafuda, the Chrysanthemum with Sake Cup card is sometimes used as a wild card.
化け札のルールは地域やゲームによって異なる。
The rules for wild cards vary by region and game.
Hanafuda is the traditional Japanese card game in which 化け札 is used.
Scoring cards in hanafuda; 化け札 is a special type that can count as multiple scoring cards.
Compound of 化け (ばけ, 'transforming') and 札 (ふだ, 'card'), literally 'transforming card'. The exact historical derivation is uncertain, but the term is well-established in hanafuda terminology.