Sunset Dragons are closely related to sunrise dragons. However, their behaviors differ greatly. Sunset Dragons generally live alone or in small packs. They are more active in the evening, hunting and performing all of their daily tasks as the sun sets.

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.

Occasus Phasmatis, as a sunset dragon, enjoys a solitary life. Although every now and then, when her mate Alecthreaus brings a friend of his or someone he met at the army he occupies during wars, she can't help but smile to see that they'll be having a nice conversation soon. Her typical day to day life usually would start at the sunset and end at the sunrise. Her mate doesn't mind staying up that late, although sometimes he will fall asleep. Unknown to many people is the great power differences of sunset or night and sunrise or day. A sunset dragon's power lowers by 50 at sunrise and rises 60 at sunset. At the little moment the sunset lasts, Occasus basks in its rays until her strength is completely restored so she can stay awake for the rest of the night.