“Rarity (レアリティ Reariti) is a rough indicator of how frequently a card appears in booster packs...Rarity
“Z/X -Zillions of enemy X- or Z/X (ゼクス Zekusu) for short, is a trading card game and media...Z/X -Zillions of enemy X-
“Based on the distribution method, Z/X cards can be roughly split into 6 categories, which can be...Card Classification and Limitations
“Free card (フリーカード Furī Kādo) is one of the classification of cards in Z/X -Zillions of enemy X...Free Card
This category has the following 10 subcategories, out of 10 total.