PoE Shadow, Trickster, Area, Attack builds

I have made a Charged Dash build, here is the PoB link: I am pretty new to making my own builds, so I have probably made a lot of rookie mistakes. Some points: PoB settings have been set to deal damage against Shaper/Guardian; only two utility flasks are also selected as "on" I have tried to just pick average-ish gear, nothing special; I have a good sense of how to modify the rares to make them better, but I am a bit lost as to which uniques would be nice I am not really sure how much damage is needed to kill Shaper. If he has around 20,000,000 HP, th