Tonton Streaming Xiaolin Showdown (2003) S1E7 - Ring of the Nine Dragons

Omi misuses the new Shen-Gong-Wu, Ring of the Nine Dragons, which duplicates its bearer up to nine times. His plan is to try and do everything at once with his eight twins, but doesn't know that the Ring also divides your personality, intelligence, potential, etc. Omi uses the Ring again when looking for another Shen-Gong-Wu to cover more ground, but crosses paths with Jack, and one of the Omis unwittingly starts up a Xiaolin Showdown.