1.3 Point Blank Ice Shot Tank help

Hi, I'm trying out a new build for point blank cuz no one seems to be using it much. I was wondering if I could get some feedback on my passive tree and any other things I should focus on such as specific Items and what not.

I'm planning to use Ice shot with Herald of Ice, Grace, Pufity of Elements or a specific Element depending on my resistance.

Here's my passive tree https://poebuilder.com/character/AAAAAgQAmy25HRXsivDEgrCrvqdlTb026mJ1y7e2jX62QU4qKaXIzO-P329br8Ezhs4hdqTCFHURgd1GY6dW-nfXMfp29znUoJ_8xUp945-HdmegCpt4638rMHxNkiP2jX3_3iT951RRRyzp3Q0VIErIPycqTdi9NZK18m6qMglybGxGqW7-Cjwtxq63Pmjyr2xM_6IA8B8YXTzvgpvtIOFzd-VX4pBVJy_sOHGFwBoaOEbXVymxQtq5Zp760uNqFm826SSqyqldaJrxCImVBVO7v9VDMSo4TeP-j6ZX8kU64VXWZOcXL4Ck

Thanks