Cockatrice

"I compiled a list, but the top choices are a basilisk—which I'm sure you all know about considering the popularity of a certain boy wizard—a type of elf known as a svartálfar, and a cockatrice."

- Leo

A Cockatrice is a dragon with the head of a rooster and has the power of Petrification. It was only referenced in Let Gorgons Be Gorgons.

While looking through possibilities of creatures with the ability to turn flesh to stone, a basilisk was mentioned.

Powers and Abilities

 * Active Powers
 * Petrification: The ability to turn flesh to stone.