skull yugioh card 2002 Yu-gi-oh! Mrd-metal Raiders 003 Summoned PSA 9 Graded Only cards with this symbol can be used in Speed Duels Burning Skull Head - Yugipedia

PS: A wild speculation

The players sat down and got set up to begin

There is a legal phrase called promissory estoppel, which essentially means that if your promise has serious repercussions for the other party and by not keeping it you caused some sort of harm (financial, in this casespoiler alert), youre liable for that harm and can be prosecuted

Rapid Strike Urshifu VMAX 088/163 Oversize Card

While sub-sets tend to introduce new mechanics or gimmicks to the game, full sets provide a ton of new cards to collect and form the foundation for a new metagame that could last for months

Not only are you getting to pick from a lot of options, youre getting unique insight into how your opponents deck works