Xiaolin Showdown S01 E08 Night of the Sapphire Dragon

"Gong Yi Tanpai!"

The Xiaolin Warriors uncover a mysterious Shen-Gong-Wu that holds a secret power: Once unleashed, it takes the form of a dragon and turns anybody it comes across into a sapphire statue. It all rests on Dojo to stop the Sapphire Dragon ... for everyone else has been turned to sapphire.