Jade Eye

Chi-Yu Lin, aka Jade Eye, is a Greater green snake (I know you said King cobra, but I think we should deviate from the most famous venomous snake in the world. But I have a way to get around it.) from the world of Kung Fu Panda. One of the worst modern chi parasites, he too sought the Wellspring protected by the Panda Guardians and the Four Constellations after he used his chi to obtain a cobra-like form and the ability to control others' chi with his own by just tasting it with his chi-sensing forked tongue. Though he was responsible with this ability for a while, he grew mad and tried to use it for evil. (TBC by Scroopfan.)