"Hex"  (Season 8 | Episode 17)  43:0
At Chloe's birthday party, a mysterious magician named Zantanna (Serinda Swan) puts a spell on Chloe and Lois, forcing them to switch bodies. Zantanna searches for her father's book of spells so she can conjure his spirit, but not before also granting Clark his deepest wish.
Original Air Date: 3/26/2009