Duelo Primigenio A new design in a multi-game deck . The main feature of the deck is the use of the reverse of the cards in the mechanichs of the games. In this deck the reverse shows the color of the front of the card, something very simple that has enabled us to unlock a lot of innovative mechanical to design games exclusively for this deck. Spanish description: Un nuevo concepto en baraja de cartas, donde los colores y los reversos de las cartas tienen un papel muy relevante .Los reversos de las cartas no son iguales como en una baraja tradicional, muestran el color del anverso.