Death's Oath on Slayer: Tanky, Smooth Autobomber with 45 mil single target DPS

Showcase video: https://www.youtube.com/watch?v=YL29xT3A-EQ&

POB: https://pobb.in/8BhdulFg0HIe

Intro:

I wanted to make a build around Original Sin and Svallin as an end of the league build after running LS Slayer for a while, and something that wouldn't litter the screen or at least be easier on my PC while finishing achievements.

Not budget friendly being 1 mirror+, but everything else is fairly affordable. It's extremely FUN to run and much more tanky and higher DPS than other Occultists running Death Oath, and similar price range at upper end. Running slayer with 20% cull helps solve single target problem on Occultist. It has very high eHP pool thanks to multiple layers of defence from capped block, strength of blood, defiance of destiny, 8+ endurance charges giving another 32% phys reduction, easy access to suppress nodes for suppression cap, Ailment Immune, Crit immune, immortal call set up with endurance charge on block, to make an extremely comfortable and smooth end game mapper.

How to Play this Build:

Just start walking, zipping around the map with whirling blades, ignoring almost all mobs and clicking shrines/boxes while everything else dies around you. Does it not die immediately? Svallin procs Tornado linked to Temporal Chains/Hextouch, hindering enemies (gaining you another 20% MORE damage), as well as buffing you both offensively/defensively. Hit them with VS which reaches DOT cap due to stacking Frenzy/Affliction charges.

For normal/rare mobs, you get explosions from unspeakable gifts + oriath's end (which gets converted to chaos), along with 50% chance to poison on explosions from tattoos + global poison hit chance nodes, to clear huge packs which rivals the clear from Profane Bloom. Original Sin's ability to lower all chaos res to 0 negates need to use despair curse/aura.Death Aura + Plague Bearer hits 400k DPS and with explodes should be enough to clear trash/magic mobs. Pop a tincture to hit the heavy rares. Use frenzy of onslaught to maintain affliction charges for prolonged bosses or for phases in which you don't get to kill any mobs.

Great for farming gold, rushing 8 mod T16's toxic sewers for gold farming. Handles and tanks T17 easily as well (with the right mods), but not quite as smooth or fast as running multiple T16's. Uber viable (with skill) but not ideal if you're not great at mechanics. Primary weakness is DOT's since you don't have huge leech instances like LS Slayer would. No leech mods can be a pain due to mana sustain difficulties on bosses.

Next upgrades would be better Lethal Pride with corrupted blood immunity. Two extra levels could also help you get closer to 4k life. Build is far from min-maxed, so if anyone has any other suggestions on how to optimize would love to hear your thoughts.

Budget

If you wanted to try a budget version without original sin, you would have to get a Shako that has Level 35 added chaos damage + any other modifier, and use Chaos + Phys dagger instead of an elemental one. You could maintain similar amounts of tankiness but single target damage would be much lower.