"...When I was a kid, I played games with Duelist Kingdom rules where all the monsters could be played with no sacrifices and everyone drew five cards every turn." SIMON: These were two aspects of dueling that were lost in the process when the ancient sport of Duel Monsters was adapted to card form
GX: Duel Academy follows a calendar in which certain events only happen at certain dates
While a real life version has since been released, actual card/monster was never seen in the anime, only a brief mention was made
[1] [2] [3] Pendulum Summoning[edit] Once per turn, during the Main Phase, while there are Pendulum Monsters in both Pendulum Zones, the turn player can perform a Pendulum Summon, using the Pendulum Monsters' Pendulum Scales to determine the Levels of the monsters that can be Summoned
Bocchi the Rock Holographic Card Sleeves
Introduces new members/support for the "Allure Queen", "Ancient Gear", "Forbidden One", "Gimmick Puppet", "Performage", "Rank-Up-Magic", and "Shark" archetypes, as well as the Clear and Field Searcher series to the OCG