Are You Afraid of the Dark? S02 E06 The Tale of the Dark Dragon

"Submitted for the approval of the Midnight Society, I call this story..."

A teenager buys a potion from Sardo's magic shop hoping to make himself cooler, since he was in a accident that caused him to have to wear a brace on his leg. He soon finds himself changing, but also discovers that the potion has some very bad side effects.