Igneous, otherwise known as Iggy, is an outcast from his clan after vomiting up the contents of his encased body and creating a pestilence-infused patch of dead grass. Seeking refuge in the one place where his capsule wouldn't destroy his surroundings, he was adopted into the clan. His liquid and type's conflicting properties seems to be a result of his father, a Plague dragon with similar traits. In order to keep his body from rejecting it and cause him to vomit, he takes a simple medicine from Altta. Now, he trains under Velveteen's watchful gaze as an melee fighter, and tends to dip his cleaver in his own rot-filled liquid for fighting. Over time, he's become one brutal dragon with a bit of a soft side born from Frank and Velveteen's care.

He shares a strong kinship with other capsule dragons due to their similar traits, and has found a father figure in both Velveteen and Frank.