The Grey Wizard of Hogwarts

Lupin's class drew plaudits, beginning with the myth and legend of the dark creature Billy the whiptail hog, explaining the magic principle behind the legendary abilities.

From how to fight against Billy's whiptail hog, it tells the magic spell researched by modern wizards against this creature.

"This creature with powerful physical strength is extremely fast and powerful, and can easily harm the body of a wizard."

"But interestingly

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