3.7 - 3.8 Scourge Arrow Raider (All Content) Solo Delve 3.1k+ by Ontop

Pros
1)Availability and price of gear.
2)Very, very Impressive single target damage.
3)Build is focused on cold damage, which by itself is a great defensive mechanic that allows you to permafreeze all the bosses up to T16 Guardians.
4)Decent survivability
5)A lot of respec options - Ranger is versatile enough to switch into MF Burial maniac, any Pathfinder build, Labrunner etc.

Cons
1)Relatively low HP pool, about 5.5k
2)Player reaction speed is important (part of your mistakes can be negated by evasion/dodge ;D)
3)As result of two lines above, cannot facetank stuff.
4)Uncomfortable gameplay in closed space.
5)Respec is required after passing acts (which might be pricey early in league)
6)You need to unlock a few of veiled crafting mods for your endgame bow.

Full build video guide (russian)
https://youtu.be/yatf6oTdVhQ
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Most important changes for SA Raider in Blight League. Quick overview of patch notes (russian).
https://youtu.be/_buFYPuKYCo
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Uber Elder(3.7 (Boss fight is the same in 3.8))
https://youtu.be/VlkOWkDiWqg
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Aul, The Crystal King Depth 820
https://youtu.be/KhVJ1lnfkCY
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Aul, The Crystal King Depth 970, Extra Life/Ele Res
https://youtu.be/j0BPflNQNj4
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Aul, The Crystal King Depth 1300
https://youtu.be/vXweYOyRgN8
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Aul, The Crystal King Depth 1500
https://youtu.be/idPY6p6MIR0

As one of my friends saying, Ranger without twink leveling gear is like a wheelchair slowly crawling on its screaking wheels into the first Labyrinth for turbo engine.
Most comfortable "wheelchair" in my opinion is a Toxic Rain.

Weapon, during all 10 acts we gonna need 3 bows with fastest base attack speed: , which we craft using vendor recipe below and thats more than enough.

Next most important slot for leveling is boots with movement speed. After getting one pair, with enough luck you can reach maps by just improving %movement speed via another recipe.
Regarding other gear pieces, we just looking for items with hp/resists, added physical damage and attack speed on quiver / jewelry / gloves are also nice addition.

8 Points


17 Points

26 Points

36 Points & 1st Lab


48 Points


59 Points


71 Points & 2nd Lab

77 Points

89 Points


95-99 Points & 3rd Lab


96 Points


106 Points


112 Points & 4th Lab


115 Points (+Lioneye's Fall)

Scourge Arrow - our main skill (which you of course didn't forget to level up since Act 3, right?!)
Elemental Damage with Attacks - best support gem for elemental attack build.
Mirage Archer - keep dealing damage regardless of what you doing - kiting the enemies, picking up the loot etc.
Ice Bite - some flat Cold Damage, and additional Cold Damage for each Frenzy Charge; Chance to Freeze might be useful with low critical strike chance.
Added Cold Damage - A lot of flat Cold Damage.
Hypothermia - Multiplies damage against Chilled enemies - since almost all of our damage is cold, it works all the time after first hit.
Curse setup

CWDT

Auras/misc

Major
• Soul of the Brine King - For leveling and early mapping, when life pool and evasion / dodge are too low. Allows to not die in stunlock.
• Soul of Lunaris - Late major Pantheon option.

Minor
• Soul of Ryslatha - Sustain for Life flask charges without killing anything (Lab / Bosses), strong healing when on low life.
• Soul of Garukhan - Free movement speed and dodge.
• Soul of Yugul - Helps to not die from Uber Atziri's reflect (still don't attack mirror clone).
• Soul of Shakari - Poison immunity, caustic ground damage reduction.

Choice is up to you.

Cheap and efficient, thats main criterias for the build and they are used from starting items, up to the most of Advanced section items.
Its time to replace our Magic Thicket Bow.
Best option by cost and effectiveness to begin with would be

Attack speed value up to 1.95 makes it BiS item for SA in that price category, no physical damage means you can run physical reflect maps, plus some extra lightning damage.
Nuro's Harp is slower alternative with nice cold damage and higher crit chance.
At the moment of finishing acts those bows should cost nothing, picking up one with highest attack speed (important for Channeling speed of SA).

Next important slot is Body Armour. And the price/quality contest winner is, of course

Buying or farming one in Blood Aqueduct, Channel Map.
Corrupted 6L also isn't bad alternative, easier to get more resists / life but harder to sell later.

Gloves: any pair with life and missing resists, pay attention to gloves base because Storm Brand setup requires 3 blue sockets, and CWDT need 3 reds. Its obviously not worth to spend tons of chromatics on item you will replace in 1-2 days, so better to pick up an easy to color base.

Boots: life and as much movement speed as possible; getting a good boots for cheap is really hard, any extra resistance is a huge bonus. Same thing about base and colors as with gloves slot.

Belt: Leather Belt/Stygian Vise with life, resists and/or elemental damage, craft missing ones on the bench if possible.

Rings & amulet: life, elemental damage, extra resistances as a nice bonus. Note that good jewelry is relatively cheap first days in league, it will be much harder to find something good and cheap later.

Quiver: life, crit multiplier, resist, craft elemental damage using crafting bench. Quivers aren't in high demand so there should be a lot of them to choose from, for reasonable price.

Helmet: if you capped on resists by getting everything above, use

for higher survivability. Its way more expensive than

which provides more damage and speed, but choice is yours. If you didn't managed to cap resists just use Rare helmet with life and missing resistances.

Total price of basic gear should be in range of 50 chaos, which easily can be farmed just by doing chaos recipe.
This setup is enough up to early red maps, then you'll start having problems with life pool, and so its time to move into Late Gear section.

All gear examples presented below, as well as gem setups are included in PoB profile.

First lets talk about priorities.

As i mentioned before, the earlier you in league, the lower the jewelry prices. So if you gearing early in league its better to begin with purchasing a good rings / amulet. If in your case its not a first character or league economy is established already, start changing your gear from Body Armour/Bow. Overall order of replacement is following:

Bow+Armour > Helmet > Lioneye Fall/Watcher's Eye > Tombfist > Jewelry/Quiver

Bow

How to craft similar bow


Armour

Besides that absurd amount of flat cold damage it provides 10% of Attack & Spell Dodge. Impressive Evasion stat. BiS for sure.

Note that combination of 5L Bow+Armour is better than Bow+Tabula.

Helmet

Our goal here is an Evasion base with enchant Scourge Arrow creates an additional spore pod at Maximum Stages.
Relatively easy to craft with Pristine (life) and Frigid (for Nearby Enemies have -9% to Cold Resistance) fossils.

Gloves

Tombfist - cheapest of useful bases that should be considered for +1 Frenzy Charge corruption. Murderous Eye abyssal Jewel in those will add another 10% increased damage taken via Intimidate debuff.

Boots

Boots from Temple of Atzoatl with hybrid 30% movement speed & Spell/Attack Dodge mod. Life and resists of course.
Enchant options:
80% chance to Avoid being Stunned if you've Killed Recently - for mapping.
Damage Penetrates 10% of Enemy Resistances if you haven't Killed Recently - for bosses.

Jewelry
Its very simple, more life, more resists.

Flasks

Wise Oak - good option for both defense and offense.
Ideally you want to balance all of your Uncapped Elemental resistances to be the same number, if you can't do it then at least make your Cold resistance to be your highest value.
Replacing Sulphur Flask.

Jewels


Lioneye Fall - Additional crit, leech and Blind chance.
Watcher's Eye - We have only 2 auras, Precision and Hatred. Mods for them, starting with most important:

• Hatred - Crit Chance
• Hatred - Cold Pen
• Hatred - Flat Cold
• Hatred - % Cold

• Precision - Crit Multi
• Precision - Attack Damage
• Precision - Attack Speed

Also there is some other mod(s) to consider.

Grace - Chance to Evade, since we are capped on Dodge with Vaal Grace, pure chance to Evade isn't bad bonus to have during the buff.

This gear setup is enough to annihilate any endgame encounter literally in a few clicks.

In general, this section just assumes even more stats from every gear slot.

Bow
Apart from the other slots I would like to mention the Bow, or rather the method of crafting one.
Prefix Socketed Skills deal 20% more Attack Damage can appear when using Serrated Fossil. Catching both 20% and shaper's Double Damage would be easier by using Shuddering Fossil as second. Then pray to annul everything else. That bow should add about 10% More damage. You decide if its worth to craft.

Quiver
Its not even about the quiver itself but an additional arrow roll. It will improve pods' ability to hit targets and so boost your single target damage.
Quiver base: Spike Point for higher damage.

Belt
%Elemental and Cold damage, crafting with Prismatic,Frigid,Pristine fossils.

DO NOT FACETANK, main advice for those who will be playing the build for the first time (or Ranger in general). Even though your main defensive mechanic is completely negates the damage by dodging / evading it, you definitely not want to pray for it to work every time. High attack and movement speed allows to kite any danger instead of facing it.
Another thing I want to mention is reflect mitigation in Atziri fight. Things to help with it:
Soul of Yugul - 25% reduced Reflected Damage taken, 5% reduced Cold Damage taken if you've been Hit Recently
- with balanced resists mitigates Cold damage taken
- Left Ring slot, or use Shaper rings with reduced reflected damage taken mod.

Position yourself further from the target to deal less damage due Point Blank.

I prefer Frenzy skill for Atziri kill.