xy phantom forces booster box Opening Pt. 1 EX to give you an edge Pokemon XY Phantom Forces Sleeved

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Pokmon TCG, MLB, NFL, NBA, vintage sports cards, Yu-Gi-Oh!, Magic: The Gathering, and more

You can use these to attack an enemy Digimon based on their elemental weaknesses

Search your deck for up to 3 basic Energy cards and attach them to your Pokemon V in anyway you like

040 contains the Eevee AR, which was previously released in the Chinese version

The last use thats interesting to me is taking advantage of its creature type and simply updating Merfolk with the card, which takes the least advantage of the standalone power level, while still using it in a synergistic way that might offer a useful new dimension to a deck that was already close to good enough