How many signature cards does a card war leader have?

A box of card battle leaders has seven signature cards. Supplementary pack of 5 cards or a box of 16, a box of 16 and a pack of 7 cards. Each box must contain 1 10thRRR, and another card destined to be SP or 10thRRR, 4 rrrs, 6 rrs, 4 H,10thrsp or other cards with higher rarity will replace a C card. You can see the characters on the 10thSP card. In the first season, the posture of Suzugamori Ren boss is the same as that of 10 years ago, and the Phantom Storm Emperor is also the image of 10 years ago.