POP Series 4

POP Series 4 is a promotional mini-set from the EX era, released through Pokémon Organized Play, themed around Deoxys and marking the first appearance of Delta Species cards in the POP series. The set has 17 cards, and its most recognisable chase card is Deoxys ex. Alongside it, Deoxys δ, Mew, Flygon and Sceptile stand out, while Scramble Energy, Heal Energy and the Supporter Pokémon Fan Club strengthen the utility pool. Additional holo variants also matter to collectors, including unusual holographic versions of some commons and uncommons.