Exit from Exile (Green and Red) is the biggest mystery
There's also a chest
3 Reptilianne Vaskii 3 Reptilianne Gardna 3 Reptilianne Viper 3 Reptilianne Lamia 3 Null, Dredge of the Abhyss 3 Nihil, Dredge of the Abhyss 1 Zoha, Haze of the Abhyss 1 Phlogi, Haze of the Abhyss 1 Curse, Dawn of the Abhyss 1 Aleth, Dusk of the Abhyss 1 Aron, King of the Abhyss 1 Amunesia, QUeen of the Abhyss 1 Ogdoabyss, Deity of the Abhyss 1 Yamoimori 3 Reptilianne Spawn 3 Snake Lily of the Abhyss 3 Snake Rain 3 Invasion of the Abhyss 2 Titanocider 3 Reptilianne Echidna 3 Alien Shocktrooper M-Frame 2 Linkmail Archfiend 3 Reptilianne Hydra 1 Stardust Charge Warrior 3 King of the Feral Imps
Its card number is 30/114
While a great many of these types of games have fallen out of favor, here are several that have not only lasted through the years, but have remained popular
The card debuted in the Sword & Shield series' Vivid Voltage expansion set in 2020