PoE Marauder, Projectile builds

Hello! First time posting here because I thought I had a good idea.There may be some similar builds, but haven't really noticed any. Thought this could be a thing and would love some feedback and help on the build. The build tries to utilize the new boot base " 25% less Accuracy Rating,1 to (5–6) Added Attack Lightning Damage per 200 Accuracy Rating ". As well as the old Obscurantis, Hinekora's Sight and Oskarm to get some damage into the build.

Leveling (Not tested) -Create a witch and level it to for grab flamewall and arcane surge -With Chieftain us Fireball + Arcane Surge to level 4 -Use Holy Flame totem + added fire damge + Combustion and fireball with arcane surge - At level 12 grab searing bond + combustion with HFT - Craft a fire damage wand with an alteration + ruby ring and magic wand or scepter as soon as possible. -Be on the look out for high physical dps bows. -Switch to Artillery ballista after library 2 reds 1 green or 2 greens 1 red Artillery ballista + Elemental damage with Attacks + Added Fire Damage or Vici

Is this viable for the end game? I'm currently just at the start of mapping, I think I have reached T4 and fought Baran once, but I want to respec this character into the build above, because I started to die way too often to my liking, so I adopted as much defensive layers I figured I can realistically do while still doing enough damage not to get stuck on each magic monster pack. This character currently runs pretty much all the same build, but with a different tree and different utility gem setups because initially I had a different build in mind before findi

My take on FB Zerker, all gear is self-crafted via harvest and will be hard to obtain without it. While I wouldn't exactly call the build tanky, it's built more defensively than most other FB builds I've seen. Defensive features: 7k life Fortify with 25% increased effect full Elemental Ailment Immunity Overleech Acro / Phase Acro (+ can swap in Quartz over Quicksilver for more defense) 30% of Phys taken as Ele Wind Dancer Blind Endurance Charges Simulacrum Waves 19/20 video: PoB: [