Transformation Curse

The Transformation Curse is a spell that causes the afflicted to transform into various beings.

The only known instance of this curse's usage was when the Thricewise Kenny cast it on Dawn Summers in retribution for Dawn cheating on him with his roommate. Under its influence, Dawn mutated into a giant, a centaur, and eventually a living doll, though she managed to break the spell by apologizing to Kenny. Eventually, the curse would have caused Dawn to transform into a fire slug, though Kenny assured Dawn that he would have broken the spell before that point either way.