Chroma, help me build a new setup?

I'm lost as to what to do with my chroma now. I have 7 forma in him and i just can't get him to feel any sort of fun now. I also am having trouble finding a suitable weapon mostly for PoE and Teralysts.

I don't need to be one shotting Teralysts again because that was a bit broken, but going from being able to one shot not being able to even break a joint and doing 80% or more of the damage during a hunt to doing 12% or less like I am now is unacceptable to me. Any good builds or ideas?