https://cardfolio.idolmaster-official.jp/

The Idolm@ster Cardfolio trading card series has launched, starting with the AS set. In addition to new art, this will have past live outfits and other memorable clothing.

This set has 107 cards with the following rarities:
Normal - 39
Rare - 14
Super Rare - 39
Super Special Rare - 14
Master Rare - 1

https://cardfolio.idolmaster-official.jp/cardlist/

Only the 10-pack box can be purchased from Asobistore and it is 5000 yen.