Did i build a bad build?

I am going for life leech, lightning damage and mana regen. Did i ruin my build?

this is the link to the build:

http://www.pathofexile.com/passive-skill-tree/AAAAAgUABLMFWxRNGF0jTSSLKU8yiTdHOtg9D0A2RHJG11fiYG1rrHflfLuCm4M4hMSLjJvsnYCf36IAtPnE9uFz7DjtIPAf