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.

Sebastian, abandoned at birth like most of the dragons in Tail's Cave, was always one of the stronger and faster ones of the nest. He was always trying to kill already dead prey Morganna would bring him.

Sebastian loves to kill prey with his tail. Finding it almost funny, he can bring in up to 50 pounds of food a day. Morganna constantly scolds him for it, as for he is constantly goofing off on the job.

Overall, Sebastian is an amazing asset to the cave and makes most laugh more than eat.