Hello guys, In league start i picked the one with nothing jewel, i rerolled my char in day 4.
i event created a help post here to make it work with rigwalds curse, some thoughts were helpful.
It is time to share the results.
WARNING : THE BUILD AINT CHEAP AT ALL, if you want cheap go for a maradeur or something w/o rigwalds.

Build Concept : Rigwald's crit infernal blow with hollow palm.

Ofc you can swap infernal with cyclone if u r into it. Cyclone is almost double dmg in PoB but i dont know the maths of the infernal explosions. Anyway, the build is around infernal.
i started with assasin maradeur ascendant but it felt that could only do dmg with rage and wasnt enough. i soon rerolled to raider assasin so i can be faster ( wanted to delve as well )

Core Items : Wildwarp, Rigwalds, Brutal Restraint ( inc dex and flat dex ), cyclopean.

Gem links :
Infernal - Fortify - Melee Phys - Impale - ruthless - Multystrike. ( swap multistrike with ancestral call for clearing. otherwise u wont be able to complete delirium maps.
Flesh and stone-maim keep swaping in sadn stance for defences in clearing

Other gems : vaal anscestral warchief, blood rage, dash

Optional gems : Vaal haste, haste, low lv prescision or pride with dread banner for max impale effect, whatever u feel is right.
i currently have haste and prescision open with watcher's eye. it boosts my dmg, and i am always phasing for easy delving. if i wasnt delving i would propably swap haste with pride. alltho becus we are unnarmed and have no other way to get away from an attack ( only dash ) i like haste cuz it helps u move faster
Gear :
Rare Rings with t1 dex and as many resists as you can get. always quality your jewels on attributes

Helmet : here is a tricky part. i play starkonjia becuz it feels more defencive. alltho u can swap to abyssus if you feel like it. it's a million boost easy. but i dont like being too squicy myself so i play star.

Boots : you can either go for a great tailwind rare, t1 hp n resists. so u can free a sufix and put a curse on your ring. that's ideal i know. OR take garukhan's and boost your max hp , this is as well up to u, u can play the build with 3k hp or u can play it with 5k.

Belt : Maxed out cyclopean ofc. lots of attributes, hp, and you cannot be frozen which give's us a slot in flasks for more boost.

you gonna need some good clusters with impale, maim and whatever else u like. play on PoB to see the boost. oh and resists!!
Also pick Alira for Resists.

This is my current state of the build, it can get more boost as u spend exalts on it.
Recommend PoB FORK to see full stat's otherwise you wont see and dmg scaling.

https://pastebin.com/NXGJ47NQ

Feel free to ask me anything about it.
Here is an elder fight video. enjoy the melting.
https://youtu.be/P4gn4JviWzU