flesh and blood mastery pack guardian booster box Blood: Pack: Booster Rarity Breakdown Flesh & Blood - Mastery

BO-110 (1999) Aruraumon Ref

SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE QCSE Quarter Century Secret Rare Trap Trick X TRAP Banish 1 Normal Trap from your Deck, except "Trap Trick", and if you do, Set 1 card with the same name directly from your Deck

While CGC is describing these cards as an error, they are more likely a test print or press check sheet that was accidentally cut and inserted into packs

These monsters rank among the strongest creatures in the entire game, capable of bringing fear into the hearts of every duelist

Here, they'd have been greeted with the news that the Pokedex promo is available to claim