PoE builds similar to 3.26 Pohx PL 1st Merc Div attempt (with Magefist´s Flickerstrike)

Howdy all! Absolutely new to PoE, got a point in game where running T16's is doable, but fairly hard and not consistent, I die roughly every other map (sometimes a lot more). From the guide I was using I look almost "done" but I've certainly got a lot of improvement to go. I have about 4-5 div available, could anyone make some recommendations on what I can strive for next? My build: Guide I was following: [

I tried raider, but impale is phys, so that didn't make much sense. I tried Champion, but "The Impaler" caps at 5 impales, so getting sources of +impale didn't make much sense to me either. Slayer makes a lot more sense, especially with its base crit and the buff to Kitava's Feast (which has doodoo base crit, if I'm not mistaken) I chose berserker because it has a lot of easy damage up front. This POB has theoretically 2.5M DPS, but I think it'll probably average much less than that. I'm relying on Impaler to help my clear (does

So after a bit of messing around, I might have come up with a phys Flicker Strike Slayer that looks like it's SSF viable for a league start. Parameters: 900k+ boss DPS assuming maximum Rage, Pride effect and totems, but no Berserk or Vaal Haste (goes up to 1.5m burst DPS if so). Not that you'd be doing pinnacles on this, but it's a good indication of single target potential. Clear DPS drops to 533k without totems, Vaal Haste, Berserk, or Intimidate, and setting Pride to minimum effect, but is helped along by Tribal Fury's new mel

I am wanting to play flicker strike this league with the new trauma support gem. I threw together a build using the Red Trail boots with The Golden Rule to generate frenzy charges? Is this viable? Should I drop the right side of the tree? I have posted the POB below. Any advise is appreciated.