The cards were possibly also used for divination, judging by the images that initially appeared on them: the Moon, the Sun, stars and animals, among them a goose, which gave its name to the game.
In the 19th century the auca reached its artistic peak and developed into a complete art form and publishing niche.
The most important auca artists of that time were Josep Piferrer and Ignasi Estivill from Barcelona and Agustí Laborda and Ildefons Mompié from Valencia.
The auca structure also inspired Santiago Rusiñol's play L'auca del senyor Esteve (Mr. Esteve's auca), a down-to-earth, often humorous, story about a business-oriented family who suddenly has to deal with the artistic orientation of the young heir.
A series of Castilian aucas called Aleluya (Hallelujah) were produced with themes of Catholic holidays.