Feisty and energetic, Whiptail Dragons pride themselves on their speed and agility. It is not unusual to see several whiptails racing each other. Though fragile, they can easily evade attacks with their superior speed, and often use their long tails as a weapon, giving rise to their name.

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.

The Speed Twins resident gem hoarder (thus his name), Diamond is oddly the cautious and rule-abiding of the pair which doesn't say much for either of them. However, he keeps them both out of trouble via a system of outs namely the fact that none of the Guardians will bother him. Mostly because he knows their favorite meals and is good with bribes.