Cerberus (comments would be nice)

[jefuri]

Cerberus

General: Cerberuses are usually found in the underworld. They are three-headed creatures who breathe fire. Their body is covered in scorching flame. They are usually seen every day of fall and winter. Their tracks can easily be seen during winter for the flames covering their body melts the snow easily. When seen or caught by a human, they roar loud enough to intimidate a human. But if the human doesn’t get intimidated by its roar, the Cerberus will treat him or her as its master. It is a trustworthy and courageous fellow which has the ability to withstand and absorb extreme heat.

Egg: Its egg has a tail covered in flame

Hatchling: Its pup looks like a puppy but remember that it has three heads. It is covered in weak red flames. Its body seems too weak but as long as it is in touch with anything hot. It barks at anything it doesn’t know. For a short time, its fangs are starting to grow bigger and sharper while its claws seem to be able to cut through hard stones.

Adult: It is fully developed. It gained its mastery of controlling fire and telepathy which makes it advantageous for its owner to understand it better. Its body seems to be strong enough to handle the heat. Its teeth are sharp enough to cut metals and its claws are hard enough to cut diamonds. It has fiery sharp yellow eyes which seem to be able to melt anything it stares at.

[Patricks Acolyte]

Wouldn't the plural be Cerberi, like with Pegasus and Pegasi?