This is a rather unorthodox build for CK, but surprisly it acually works out pretty good. He has a good skill pool and can take a beating, so basically you have a tanky support that will survive nukes and great stuns (2-4s !). And the best part -none will ever suspect it! The feeling when you sacriface yourself for a teammate and the opposing team thinks they killed the carry when they really just got a support! Awesome I say. Must try it, you will be surprised yourself!