Please don't call this the knock-off, we all had a Digimon Virtual Pet before Pokemon was a thing. The Digimon Card Game is a competitive trading card game. Each player has a companion Digimon in the battle area to attack the opponent. Your Digimon evolves, gets stronger, and gains new power! You win by beating your opponent’s security (reducing your opponent’s Security Area cards to zero) and delivering a knockout blow!