8 is the minimum allowed and most players use 8 but sometimes in DTs 9 card decks are used to get a higher * count whilst only using low * cards (though with the DT changes this isn't done as much).
The Urban Rivals team is made by lovers of all kind of Collectibles Cards Games and Trading Cards Games like: Magic the Gathering, Dominion, Vampire, Yu-Gi-Oh!, Pokemon, Wakfu TCG, Assassin Creed Recollection, Shadow Era, Kard Kombat and Might & Magic Duel of Champions.