PoE Spellslinger, Witch, Melee builds

PoB: &x200B; Poet's Pen can generate Corpses for DD, and can also cast VD for extra clear. Anomalous Detonate Dead + Lv 3 Enhance (or Ashes) fully converts its damage to Chaos. Spellslinger Support can trigger it with Poet's Pen. Frenzy generates Frenzy Charges, Assassin's Mark on Hit generates Power Charges, Badge of the Brotherhood sets Frenzy max charges equal to Power Charges Occultists gives access to extra Power Charge, additional curse, Chaos Resist stuff, Wither and most importantly, Corpse Pact via Forbidde

First time making a build but really just stealing the tree and some gear thoughts from a TS build I was following and combined them into VD/DD. Wanted to get some thoughts on it to see where I could improve or if there are some useless things I'm doing to change POB:

Hey, I was thinking about going Exsanguinate Elemancer spellslinger as my started since the DoT numbers seem pretty nice, worst case scenario I'll switch to BA ignite. This is the passive tree that I came up with so far: I'm trying to get some spell damage in the witch area and then get the both phys dot nodes, life, and some wand stuff. I would be grateful if someone could look over it and maybe point out any stupid mistakes.

Ignore mutahar talking in the background. Inspired by this post, put together this fella recently and despite being a glass cannon(too squishy to do delirium stuff), packs quite a big punch. &x200B; With stuff that has 100% uptime, got about 6 mil dps, with flasks and power + frenzy(generated with 3 link frenzy-culling-pcoc, though can't keep it up at all times) goes to about 10 mil. Still has lots of room to upgrade, like 4 multi jewels, tailwind boots, better rings etc. Pob:

Pob fork: Disclaimer: I only play solo/with IRL friends, so this is technically SSF. I don't give a fuck about meta, I play to have fun. I league started with this build in mind and created it as I went. So, this is honestly my very first self-made build. So far so good, both the clear and single target feel good. I stumbled upon the combination of Sniper's Mark (spellslinger) + Pierce. You never have to think about what target is marked due to the fact that Marks are no longer a namelock skill. It also works beautifully because of how Subprojectiles work now: