Shen Gong Wu were powerful magical objects created by Grand Master Dashi. They are the most important aspects of Xiaolin Showdown. The Shen Gong Wu activated one by one over a long period, and both the Xiaolin and the Heylin had ways of detecting their activation. The Xiaolin warriors had Dojo Kanojo Cho, and the Heylin villains had Wuya. Wuya grew more powerful with more Shen Gong Wu, so the Xiaolin Dragons-in-training had to collected as many as they could to stop her.