What other game is comparable to Theatrix but uses playing cards as its randomiser?
Diceless role-playing game A diceless role-playing game is a role-playing game which is not based on chance: it does not use randomisers to determine the outcome of events in its role-playing game system. The style of game is known as "diceless" because most games use dice as their randomiser; some games such as "Castle Falkenstein" use other randomisers such as playing cards as substitutes for dice, and are not considered "diceless".
Shedding-type games A shedding-type card game is a game in which the player's objective is to empty one's hand of all cards before all other players. Popular card games of this type include: