Muggles' Guide to Harry Potter/Magic/Runespoor

Overview
The Runespoor is a magical three-headed snake, commonly 6-7 feet long with orange and black stripes, and native to Africa.

Extended Description
The Runespoor's eggs are produced through the mouth, the only magical creature to do so, and are viable for mental agility-enhancing potions.

According to some Parselmouths, the Runespoor's three heads each have a different personality. From someone facing the snake: The left head planned; deciding what the Runespoor was to do, the middle head dreamed; causing some Runespoors to stay dormant for days, lost in imagination, and the right head criticized; often hissing and judging the other two heads' actions. Due to this, many Runespoors are found with no right head, the other two heads having gotten tired of its criticism. As a consequence, most Runespoors do not live to an old age. The right head's fangs are quite venomous.