I has 0.
Regarding making mark cards immortal, or giving them any buff to make them something more than a status symbol, I STRONGLY disagree. I have never entered a tournament, ever. Tournaments should not be the only way to get a good card such as a mark card or nymphs (seeing as tournaments is the only way to increase your chances of getting one) because not everyone is a pvper. This just makes two classes of players, those who regularly do tournaments, and thus get nymphs and marks out the whazoo, and the rest of the players.