All teams that registered for the competition were entered into a drawing for a special Pikachu on the Ball promotional card
2017-06-13 If one of these creatures cant attack its player during a given turn (perhaps because that player has left the game, or because a member of the opposing team has gained control of it), it may attack another player, attack a planeswalker an opponent controls, or not attack at all
Mainly, it requires two cards and then any type of in-color way to sacrifice permanents (or even just creatures, specifically), and these cards are Nine-Lives Familiar and All Will Be One
Summary For high-value One Piece cards, it is harder to fail if you look at them including the specification, condition, grading, and number of listings, rather than just the popularity of the card itself