B Series Vol. 4

The short version

The B Series Vol. 4 pack holds five cards, all of them from Promo B. The pool runs to three rarities — three Commons, one Rare and one Double Rare. The best pull in it is Mega Medicham ex #029, a Double Rare that turns up about once in 132 packs, or 500 Pack Points to buy outright. Nine hunts in ten end inside 304 packs, which is about 5 months at the two free packs a day the game gives you. Five of the game’s types are represented, Colorless on more cards than any other. Four artists drew it, Shigenori Negishi more than anyone else with two cards. The pool is Mudkip #026 from Promo B, Plusle #027 from Promo B, Ralts #028 from Promo B, Mega Medicham ex #029 from Promo B and Tornadus #030 from Promo B. The pack opened with Promo B in October 2025.