Fairy Tail (Official Dub) Episode 19 English Dubbed Episode Title:Changeling.Episode Description:After returning to Magnolia, Natsu is intrigued by an unfamiliar request on the job board and recites the ancient words written on it, causing him, Lucy, and Happy to switch bodies with Loke, Gray, and Erza, respectively. With half an hour to reverse the spell before its effects remain permanent, the group's guildmate Levy McGarden uses her linguistic skills to decode and undo the spell. However, she only restores Lucy and Gray to normal, and moreover causes everyone else in the guild to switch bodies as well.