Demon Chi

When the Demon Sorcerers were banished by the Eight Immortals, traces of their chi were left in the items used by the Immortals. 
So when the stars aligned, the items used by the Eight Immortals activated, and someone would become imbued with the power of the respective demon sealed away.
When demon chi is absorbed, the host slowly transforms into the demon itself but leaving minor changes, this is explained when Jade absorbed the wind chi.
The Hunt for the Demon Chi serves as the primary focus of Nerissa's Revenge Saga.
== Powers & Abilities ==
Whoever absorbs the Demon Chi can use the power of those said demons, as well as slowly turn into them.
While those who absorb a demon's chi will usually only take on the demon's physiological characteristics, Drago also gained Tso Lan's clothing when he absorbed his chi.
Humans who absorb a demon's chi may lose some of their humanity as a result, but this depends largely on the Demon. 
Tohru appears to lose all control after becoming the Mountain Demon, but appears to retain his protectiveness towards Jade. 
Similarly, Dean Collins still recognizes her role as a teacher and uses her Sky Demon powers to protect Will, despite becoming more animalistic in nature. 
Martin also loses himself as the Earth Demon in his desire to become a superhero, but was eventually convinced to give up his powers. 
All the humans that possessed some aspect of the Fire Demon Chi, as well as Jade and Caleb (with the Wind and Earth Demon Chi respectively) did not show any changes in mindset.
According to Shendu, if one individual absorbs all eight types of Demon Chi, they can never be removed.
== List of Chi ==
File:Demon Chi (Wind).jpg|Wind
File:Demon Chi (Water).png|Water
File:Demon Chi (Earth).png|Earth
File:Demon Chi (Moon).png|Moon
File:Demon Chi (Sky).png|Sky
File:Demon Chi (Thunder).png|Thunder
File:Demon Chi (Moutain).png|Mountain
File:Demon Chi (Fire).png|Fire