Videos of funstuff are at the bottom.
Holy balls look at that almost 10 crit. This bow is definitely not op. I repeat, not op.
Now, if you're unfamiliar with split arrow builds, over 20k with chain is insane especially for such a fast attack speed. To reach my dps numbers (and higher) you'll need a 6L in either your Voll's or Windripper. Keep in mind ele hit doesn't list dps accurately because the random ele it does isn't listed and also I'm using a 5L for it.
Everything I did for this spec was a rather quick slap together so the gear isn't too amazing or strict in what you use. Likewise with the spec. I felt this was the most efficient use of points to get the best clearing speed/feel and dps numbers whilst still managing to stay alive.
Even though my defenses are absolutely shite I rarely die these days due to killing everything faster than it has a chance to hit me.
The spec from scion start at lvl 89:
Finished spec at lvl 94:
A bit about the spec: Vaal pact is completely essential and most of the crit passives are highly recommended. The aura passives are also essential to be able to run haste/anger/wrath and as they are the source of most of your damage buffing them is a good idea. You can always trade some damage passives and grab Acrobatics/Ondars or extra evasion, life, whatever else. I'm happy with my 4500 life and 1 shot killing abilities atm so I haven't felt the need to.
My gear right now is highly not optimized and I reach over 20k on split arrow with 85% crit. I'm wearing the helm because it's what I had in my stash whereas I'd ideally run an evasion helm with good resists/life/accuracy. Accuracy on gear is hardly needed but I recommend a high amount on 1 piece, though not essential since you get a lot from the passives/dext.
The Voll's was a recent addition and I love it. I was wearing a tabula up until about 86 so I didn't feel a loss of defense, only a gain of 25% crit. You can of course choose to wear a sturdy rare chest to up your defenses, entirely up to you. Getting the right colours for split arrow on a 6L is way easier on a Voll's though which is something to note. Atziri flask is recommended since it gives a nice dps boost and helps kill ele resistant mobs quite a lot.
Try to get high WED everywhere you can as well as crit. So crit rings with WED/life are ideal but make sure you're getting sufficient resists too. Your quiver should have attack speed, WED and hopefully be crit based with crit on it too. Life & crit multi are good bonuses here.
You can easily wear a large amount of mf and turn this into a MF spec. You'll probably sacrifice a few thousand dps but not much else. My crit and dps for the most part is from the passives and the bow. I clear virtually every map level and mod quite comfortably as you will see in the videos so this spec with reduced dps can still melt through lower level maps or lunaris farming.
Gems:For your split arrow the essentials are Split arrow, Blood Magic, Life Leech, Chain. After which you will get Weapon Elemental Damage and then Critical Damage. That said I don't recommend playing it without at least a 5L. Both WED and Crit damage are such a large dps gain that to not use them is very brutal.
For Elemental Hit it is Ele hit, Blood magic, Life leech, WED. Followed by Critical Damage and finally Faster attacks for a 6L.
Bandits: Oak (40 life), Kraityn (8 AS), Alira (Power charge).
Leveling:This will be quite hard on you. With only a 4L the spec leveling kinda sucks. With a tabula which is what I used, you use an immense amount of your life to cast your split arrow. It's do-able by all means because I cruised through to 60+ in about 8 hours but it's quite a rough experience as you will watch your health dip into critical range quite often just by casting split arrow. A Life on hit gem with high quality is recommended for early stages (up to probably 60).
Ideally you'll have a high character with a free respec or many regrets and go from there. It's still quite fun and fast to level though starting with a stormcloud bow and manmoding the rest of the way. HC not recommended, lol. Or I dno, grab life nodes instead of dps ones like I did. I don't think I too more than 3-4 life nodes until lvl 50.
For maps I was doing levels 80-89 within an hour each. It was completely absurd as I was clearing 75-78 maps in 5 minutes a piece on average.
Reflect:Get your light/fire res up to respectable levels and you'll be fine with vaal pact/life leech. A light/fire flask help when you shoot into it but isn't necessary when you're capped/near capped. An Atziri flask helps greatly as well since it adds an extra source of damage and leech which doesn't reflect during its duration.
Grouping: With the 3 dps auras you provide some damage support for those you group with. That said, who cares because you're going to be completely carrying your friends on your mighty muscly back with this spec. At my dps I can comfortably carry 1-2 people without noticing much or any difference in clear speed. From level 80+ I often opened a public party and let a person tag along in my 75+ maps because it's not any slower and they could tank for me, or something, it was just for fun.
Double courtyard boss 78 map, elemental equil, fire res, -max, etc:
Typical fast map clear, a 77 shipyard:
Insane 78 map noone has any business even entering but why not:
Death and Taxes unique 75 map
Will add more videos as I play/can be bothered thinking of something. Can take request too possibly.