Dwarf Fortress, the card game?

> When watching TV shows that have cool card games, like Yu-Gi-Oh, it seems like the game doesn't have rules, but instead the kids reason about the characters by looking at the pictures.

This is basically how it worked writing-wise in the original Duel Monsters series (though the characters acted like these were mostly all known effects/interactions), after that came GX where they toned down the creativity and mostly used real effects, then in Zexal and afterwards I think they stuck almost entirely to real effects with occasional exceptions.