pokemon cards common Wizards of the Coast Base Set Card #52/102 Machop : Toys & Games Pokemon Trading Card Game Stellar

[5] Key mechanics: Flying, defender, countermagic, card restriction, and tapping

This top 10 list contains some of my favorite ways to protect your creatures and other permanents from board wipes and other removal

White Most of whites cards are heavily specialized toward either defensive decks (UG/UB) or aggressive decks (UR), with just a short list that work well in both

If competitors are found to violate any of these requirements at any time before, during, or after the competition, they will be disqualified from the event, forfeit all prizes, and be subject to further suspensions from Bandai organized play events.

They could have bought the card in good faith and not been aware.