Need Help Expanding Upon Scion Blood Magic Build

I began working on this scion blood magic build with the sole intention of being extremely good with blood magic. However I've come to a point where I'm not sure where to expand from here. All I've made was the passive tree below. I don't know what skills would work well with the passive tree and whether or not I should re-work the passive tree entirely. The tree uses physical but not melee damage primarily and it is fairly tanky. So outside of say EK I don't know what skills to use. Any help would be appreciated.