It turns out that the Kaiba that Yugi is playing against is a "Cyber Kaiba", controlled by the KaibaCorp computer, using all of Kaiba's memories
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The set contains 80 cards, or 125 cards in the Master Set: 1 Holographic Rare 8 Ultra Rares (also available as Ultimate Rare, Secret Rare, and Prismatic Secret Rare) 10 Super Rares (also available as Secret Rare and Prismatic Secret Rare) 18 Rares 44 Commons In the TCG , there are 9 cards per pack and 24 packs per box
yugioh-card.com (in Italian)
C Common SE Secret Rare By Order of the Emperor X TRAP Continuous When a monster effect is activated that activates when a monster is Normal Summoned: You can negate the activation, then the player whose effect activation was negated draws 1 card
A small number (67) of legal cards have been printed in the OCG and TCG without a password, however, almost all of these cards are already present and also have passwords in the classic games now featured in the Early Days Collection if applicable