Xiaolin Showdown S01 E13 In the Flesh

"Gong Yi Tanpai!"

Wuya uses Raimundo to steal Shen-Gong-Wu from the other three Chosen Ones. What then happens, she uses the Serpent's Tail & Reversing Mirror (a Shen-Gong-Wu that reverses the effects of another) to become human once again...