Insane mechanical dragon hellbent on destroying everything. From the Iron Dragon's Daughter by Swanwick. The titular iron dragon is he.
Name:
Firestar
Seed:
61
Firestar is an expert hunter and warrior, enough so to have become leader of his clan on merit and against the predjudice of other cats at his kittypet origins. He has prophetic dreams and 9 lives. From the Warrior Cats novels by Erin Hunter.