PoE The Pandemonius, Chaining builds

I've theory crafted (with help from a friend) a champion wild strike build using only cold damage by using the jewels and stacking hatred effect. The build has good defences through fortify, block, spell suppresion and leech. Aswell as having respectable damage for a melee build. If you have any thoughts or questions regarding the build or even any improvements feel free to let me know! POB: