PoB: https://pobb.in/SNKQWXld5g8j
By far the best bow build I have made, crucible weapons are just insane. Overall pretty happy with the build, would've liked more regen but that's hard to acquire on a bow build.
Defense: 100% spell suppression, 90% of phys taken as ele, ailment immune, 270% MS and triple ele flask. I didn't want to sacrifice any defense for more DPS.
Total build cost is over 1000 divines at this point, with 85%~ of the cost being the mirror bow, mirror ring and mageblood. I wouldn't try to copy it unless you have 300-400 divines (can use self made ring/bow).