Grave Dragons are not named for their connections to death or burial, but for the grave expression on their faces. This strange expression is used as a defense mechanism that causes fits of panic and terror in potential predators. Since they only eat ash and charcoal, they do not hunt. Grave Dragons are powerful fire-breathers and have been known to burn down forests and villages alike to make meals. It is believed that the markings on each Grave Dragon’s wings are the faces of those who have lost their lives in fires started by that dragon.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

One of the many enthusiastic players of "kick the ball with your hindlegs" in the clan, Prinz is one of the younger players in the mixed Grave dragons' team. Together with Rummenigge, Prinz leads the attack on the opponent's "gaol" to trap the ball in their net. Rather tall and only ever interested in flirting with dragonesses, many fans often mistake Prinz for one of the male players at first glance. Yet she is a rather pretty dragoness when she's not completely covered in mud and soot from an overly enthusiastic game.

Despite her close and successful game-relationship with Rummenigge, Prinz's best friend in her team is Philipp as the two dragons are both down-to-earth all around nice guys.