FIREWORK DRAGON: INCUBATION TIME: 6 Hours BUY-IT Price: GEMS HOW TO BREED: Fire and Air / Dodo and Blue Fire /Chrome and. bookofragratisonline.net Short and sweet guide on how to breed the Firework Dragon in Dragonvale. How do I breed a Firework Dragon | DragonVale. Archived Content Hey! We don't play DragonVale much anymore, so this info might be out of.