Monster Farm Battle Card is the Japanese physical collectible card game produced by Tecmo as a companion product to the Monster Rancher (Monster Farm) video game franchise. The game was released exclusively in Japan and comprised four card sets before being discontinued. Players assemble a team of monsters and deploy skill cards tied to specific breeds, with breeder cards providing environmental effects and universal cards available to any monster type. Combat involves damage calculation, guts costs, defense responses, and attribute matchups, with gameplay rules that mirror those used in Tecmo's digital adaptations: Monster Farm Battle Card GB (Game Boy Color, 1999, Japan and North America) and Monster Farm Battle Card Episode II (PlayStation, 2000). The video game versions automated the resolution of battles but preserved identical strategic rules, giving international players indirect access to a physical card game that was never sold outside Japan. The full physical card line covered 65 monster cards, 38 breeder cards, and 19 universal any-monster cards across its four sets. No further sets were published after the franchise's domestic card run ended.
Source: en.wikipedia.org/wiki/Monster_Rancher_Battle_Card_Game