West Poison

[EDIT] Fixed some anatomy issues, and upped the craziness

There's so many ways to approach "insanity" hard to pick the right one... One to go!

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Ouyang Feng (歐陽鋒 ) - Known as Xi Du (西毒 ) or West Poison. His obsession with the Jiu Yin Zhen Jing blinded him and darkened his personality. Known for his Toad stance and serpent staff, both of which could deliver crippling or even lethal poison. His disciple and "nephew" Ouyang Ke was actually his illegitimate son, the result of a liaison with his sister-in-law. After seizing a slightly changed copy of the Jiu Yin Zhen Jing from Guo Jing, Ouyang Feng began his corrupted training. Despite the improper channeling of his qi, Ouyang Feng's skills were so great he was able to wrench the incomplete teachings into the power he desired; as a side effect, instead of the death any normal person would have earned, he "merely" goes insane. At the end of The Legend of the Condor Heroes, no one could match his martial arts, from Huang Yaoshi or Hong Qi Gong to the rising star Guo Jing. Finally, he was tricked by Huang Rong into seeking the martial artist she claimed he could never defeat. And so he ran off, never realizing that this "Ouyang Feng" she spoke of was himself.