The number in the lower right corner of the card indicates the number of loyalty
Every deck that can run it, SHOULD run it, as the card is simple, incredibly effective, and allows you to get your game plan moving before your opponents can even react
There are currently 17 such monsters: "Adventurer Token", "Alexandrite Dragon", "Alligator Token", "Bellcat Token", "Gene-Warped Warwolf", "Gunkan Suship Shari", "Jongleur-Ghoul Illusionist", "Leotron", "Lunalight Token", "Megalosmasher X", "Mekk-Knight Avram", "Mystery Shell Dragon", "Phantom Gryphon", "Photon Token", "Security Token", "Shiny Black "C" Squadder", "Zombino"
Never been a fan of the japanese cards so cant help you there but the manga promos are real easy to find
The combination of nostalgia, beautiful artwork, strategic thinking, and community makes it genuinely special