The Chi Creature was a jet-black monster that guarded the Chi in the Ying-Yang world.
History
The Chi Creature was released from the Ying-Yang World by the Xiaolin Dragons when they went searching for both Omi and Master Fung's chi. When they left the Ying-Yang World, the Chi Creature followed them without being noticed by the monks, but only by Dojo. then it went on to attacking the monks at their temple, but was imprisoned in the Sphere of Yun by Jack Spicer. Chase Young later released the creature with the Serpent's Tail and after a brief battle with him, he set it loose on the monks, draining their chi. Spicer used the Ying Yo-Yo to send the Chi Creature back into the Ying-Yang World as well as collecting the monks' chi, though he sacrificed his good side in the process.
Powers and Abilities
Chi Absorption: The Chi Creature had the unique ability to suck the Chi out of people with its tongue. It did this when Chi was taken from the Ying-Yang world.
Invisibility: The Chi Creature was capable of turning itself invisible.
Superhuman Strength: The Chi Creature was superhumanly strong.
Superhuman Duability: The Chi Creature was superhumanly durable.
Replication: The Chi Creature had the ability to create smaller replicas of itself.