Guardian Dragons have large shields on the end of their tails. Although the shields appear to be heavy, they are light, yet nearly unbreakable. Guardian Dragons use their tail-shields, as well as their wings, to deflect attacks and protect others. Often, they will guard the eggs and hatchlings of a nest while others are away. They are generally peaceful, and will not retaliate unless necessary. They have no need to forage or hunt, as they are fed by those they protect.

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.

NinePinZ takes his hereditary responsibility very seriously. He came to the Mint Garden after hearing stories from his egg days, and applied to Mentha for a position among those who watch over the Garden and the School for Hatchlings.  Mentha liked the bold young Guardian, and in asking about his background and interests, found that they both share a love of a good game of ninepins, with NinePinZ being named for his obsessive love of the game. However, when Mentha invited him to play a game, he was amazed by the young Guardian's novel approach. As Mentha released the ball, NinepinZ raced the ball, attempting to position himself in front of the pins to prevent the ball knocking them over. Mentha promptly offered him a position as an instructor and coach for the new game, Guard Pins.