Help a noob with his ball lightning crit witch!

SO here is my build from the new talent tree, im planning on playing the new HC league and would love some feedback/suggestions about my build, everything is appreciated!

http://www.pathofexile.com/passive-skill-tree/AAAAAgMA37CCEI-mRKtVriycEFgFQnYRQZbk7K6z0PVMsy0fBAeVIIPbHwJrF8HzVcY2xbzqoqM6WNgkwFR_xqyYpwhqQwj0EZYRD52uDkgHHn6vGmxd8pUujRkWb-QicNV-M_DV4BIkqilPjmSJ06SRj_pJUdlfNunsOIKb96ZwUhOe6_XdjONqGjjVdbb6KguMNsMJp4TMt_PqVUu5k5BV8s5h4vIdfVPdBZ2AgzhgbRRN73wEs6IA8B8CcQ==