A Cerberus Seed
Cerberus Seeds are tiny, puppy-like demonic dogs that breathe fire and are capable of curling themselves into a ball, engulfing themselves in fire and lunging at an enemy. Left alive, they rapidly mature into full grown Cerberus Breeder. Note, however, that in its' infantile state, the Cerberus Pup has only one head. When it grows into it's adult form, the number of heads will multiply to 3.
Gallery
Mole Cerberus puppy concept art