future flash japanese booster box Pokemon Opening! Magnetic lid top Future Flash SV4M Booster Box

Special Art Rare (SAR) cards

thus all "Number C" monsters are "Chaos" Xyz Monsters

Portal to Phyrexia Portal to Phyrexia is certainly one of the coolest cards in the set, but just how powerful is it

Between The Duelist Genesis in mid-2008 and Ignition Assault in early 2020, each main set had 8 Secret Rares: some of them were TCG exclusive cards (like "Evolzar Dolkka"), others were cards originally released in the OCG as promos (like "Metaion, the Timelord") and a few more were cards whose rarity was increased (like in the case of, most notoriously from this era, "Rescue Rabbit")

[13] Yugi and Atem constructed separate Decks for the Battle Ritual, which Atem needed to lose in order to pass on to the afterlife

At the time, these cards were classified as Secret Rares , making them extremely hard to pull and instantly popular among collectors