I adopted this magnificent lad from  AidenMonster

I haven't got a bio for him yet but I've made some conjectures based on his design. The stripes may indicate his species of dragon (which isn't what the title of this submission says he is, I'm just bad with names) is naturally poisonous or venomous, but he honestly looks too soft and cuddly, so I think he's different from other dragons in his species in that way. His tail pattern also reminds me of the time portal in Samurai Jack, so maybe he has some time traveling power. I think if he did he'd probably propel himself into the air with his tail high enough so he can reach a terminal velocity and that somehow is the falling speed needed for the barb on the end of his tail to have enough force to puncture through the fabric of time.
All of these are early conjectures and I'll edit the bio as I think of more definitive characteristics.