It spawned a Collectible Card Game in 1997 too, though the game available today is a new design with numerous versions of Digimon card games having been released since the late 90s
These are limited, exclusive, and often beautiful
It could take place before this anime's equivalent of Duelist Kingdom that never aired, because Jonouchi doesn't recognize the Red-Eyes Black Dragon (but is aware of Dark Yugi's presence) and Saruwatari is still working for Kaiba
Special Summon 1 monster with the same name from your Deck, and if you do, as long as you control the face-up Special Summoned monster, monsters your opponent controls cannot target the targeted monster for attacks, also your opponent cannot target the targeted monster with card effects
It also helps Genetic Apex Melmetal, who already takes -20 DMG from attacks courtesy of its ability
What were likely to see is the price float around in the few dollars region for quite some time, with only small variations within that window