Wild Strike 2.1 Feedback Requested! =D

My gear


My current tree


so I've been using this build for awhile, because I simply love the Wild Strike ability, its a friggin blast to use, however the reason I'm posting is because I am having some survivability issues, mostly against bosses.

I know my chest piece needs to be updated, but currently I can't really afford something better, ideally I would like to have a Lightning Coil, unless there is possibly a better option. Which brings to me my reason for posting here, I would super appreciate feedback on this build!

Update:

Got a Lightning Coil, but I do still feel as though my build sufferes to much damage while fighting bosses