[3.10] PoE Delirium Shadow CoC Ice Nova Assassin 7M+ DPS Build (PC,PS4,Xbox,Mobile)

This PoE 3.10 Assassin CoC Ice Nova build, we have 7m+ Shaper DPS with quite good survivability ! We doesn't need to look for much attribute on gear and almost no mana issues, even without Enlighten. When you spin up, you can kill any enemy in map!

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Pros & Cons

Skill Tree

Bandits

Help Alira. Everything she gives us is useful. Kill all can also be an option if you prefer to.

Ascendancy 

For leveling, my preferred order for ascendancy notables is Opportunistic > Ambush and Assassinate. After Merciless lab, remove Ambush and Assassinate and pick Unstable Infusion and Deadly Infusion. For Uber lab, pick Mistwalker.

Below, there's an explanation about our choices.

Pantheon

Major: Lunaris

Minor: Any one will work well, depending on your preference. I'd recommend Garukhan for general use, and Ryslatha for lab (as we have no/low base health regen).

Passive Skill Tree & PoB

https://pastebin.com/wuNDKft0

Gems Setup

Cospri 1: Frostbolt setup

Frostbolt - Cold to Fire Support - Combustion Support

Frostbolt shall be placed on the mainhand Cospri. Cold to Fire is the best support for us. Combustion reduces enemies fire resistances, benefitting all of our damage gems.

Cospri 2: Ice Nova setup

Ice Nova - Cold to Fire Support - Elemental Focus Support

Ice Nova shall be placed on the offhand Cospri. Concentrated Effect is slightly better than Elemental Focus, but the reduced AOE from it (and the already too high damage) made me keep Elemental Focus. It can be better for bosses, though.

Chest: COC setup

Cyclone - Wave of Conviction - Increased Critical Strikes - Faster Attacks - Fortify - Cast On Critical Strike

Differently from the original version, in which we had two Ice Nova gems, here we have a third spell on our 6link: Wave of Conviction. As we only deal fire damage, Wave of Conviction will always apply fire exposure, increasing all damage dealt for all skills (as we use Avatar of Fire). You can also remove Fortify from this setup and place on the mobility setup (commented below).

4link: Mobility

Whirling Blades - Leap Slam - Faster Attacks - Culling Strike

I'd say Leap Slam and Faster Attacks are mandatory here. The other two gems are up to you. My current setup is Leap Slam + Whirling Blades + Faster Attacks + Culling Strike. Leap Slam is highly recommender for mapping because of cliffs and other obstacles. For the open slots, I've tested gems such as Whirling Blades, Culling Strike, Fortify, Endurance Charge on Melee Stun, Summon Ice Golem, Vaal Grace, ... It highly depends on your playstyle.

4link: Auras

Herald of Ash - Flesh and Stone - Precision - Summon Skitterbots

Flesh and Stone is mandatory to guarantee us 100% hit chance. Herald of Ash is extremely strong, clearing packs with its area effect and giving us a "more spell damage" effect. Precision 1 gives us a nice critical strike chance and some awesome Watcher's Eye mods for a 22 mana reservation cost. Skitterbots will slow and shock nearby enemies, effectively increasing our damage output.

4link: Utility

Vortex - Arcane Surge - Vaal Righteous Fire - Increased Duration

Vortex will deal fire damage because of Avatar of Fire, but its AOE will still chill enemies, making it safer for us and increasing our critical strike chance (from Cospri affix). As we'll be casting Vortex a lot without mana problems, Arcane Surge will have a 100% uptime (be sure not to overlevel Arcane Surge, keep it at a level you can guarantee its buff with a single Vortex cast). Vaal Righteous Fire is here to benefit from Increased Duration.

Another possibility is to run a CWDT setup instead of an Arcane Surge setup. For example, you can run Cast when Damage Taken 1 - Immortal Call 3 - Increased Duration - Vaal Righteous Fire.
With this change, we lose some "more spell damage", mana regen (which we don't really need) and chill effect (from Vortex) and gain some physical damage reduction, which we lack. The damage loss is quite considerable (my numbers changed, but it's around 11% DPS loss - we still keep around 7.4m DPS) but we gain some toughness. I still like Arcane Surge but that's an option if you like it safer (and maybe if Vortex lags you). :P

Gear Setup

Weapon

Cospri's Malice: Not much to say about them. Just need to say they're not mandatory to start running the build. Check the leveling section for more info.

Helmet

Both Devoto and Starkonja are pretty good unique options. They both gives us many useful status and the dexterity we need to use Cospri, and are relatively easier to find an enchanted or corrupted one with fire leech

Rare affixes

Chest

Loreweave and Carcass Jack are some good unique options if you lack currency for a rare chest. Anyways, the best piece is a rare chest (preferably evasion - Assassin's Garb is the best base for more evasion and implicit, but any evasion one will work). Just be careful to pick an armour piece you have attributes enough to use. :)

Gloves

An awesome option for our build is Atziri's Acuity. This item gives us some life, crit chance and Vaal Pact. By default, we can leech a maximum of 20% of our maximum life per second. Vaal Pact doubles this value, so we can get up to 40% per second, and it removes our default life regen (which we already don't have). It's an awesome option for sustain, but it can make a little harder for us to fit resistances. As usual, rare gloves are also a good option.

Boots

Rare boots are the best option here. You must get a minimum of 14% cooldown recovery speed on either boots or belt. Maybe Atziri's Step would be a good unique, but it would probably make it harder for you to fit resistances.

Belt

Again, rare is the best option here. You must get a minimum of 14% cooldown recovery speed on either boots or belt. If you're getting it on belt, Leather Belt is the best base. If you're getting it on boots, then Stygian Belt is the best base.

Amulet

The Effigon: Mandatory item to run the build. We also benefit from its dexterity, fire resistance, evasion and fire penetration. Try to get one with a "0.5% of fire damage leeched as life" corruption for sustain. Until then, replace the Elemental Focus on Ice Nova setup for a Life Leech Support (placing it on Frostbolt is bad because Frostbolt doesn't always hit a monster before you kill it).

Ring

Mark of the Shaper + elder ring with Poacher's Mark is a common option. Another possible option is to run a Circle of Anguish instead of Mark of the Shaper. This increases our damage quite a lot, but we'll lose some toughness and it's quite expensive. Still, it's a strong option, and it doesn't require you to use an elder ring.

Jewels

Frozen Trail

The only mandatory jewel. Later on the game you can look for one with the "corrupted blood cannot be inflicted on you" implicit (or on another jewel you'll use). It's quite expensive but believe me, as a Cyclone user who attacks 15 times per second, it'll save you a lot against those Nemesis monsters.

Watcher's Eye

Look for the affix "attack speed while affected by precision". It'll make easier for you to get to the 15 APS cap. This is the only really recommended affix. Double precision is quite expensive. The affix "gain a flask charge when you deal a critical strike while affected by precision" is a useful option, but even this one is already a bit expensive. The affix "#% to critical strike multiplier while affected by precision" is the best possible for a double precision jewel, but it's really, really expensive.

You can also look for precision attack speed coupled with another aura's effect (such as Hatred, Anger or Zealotry), but it would require you to place an Enlighten on the aura setup.

Rare

I'd recommend to get a single jewel with strength (to help fill strength requirement for gems). If you're trying to fit resistances, specially if you're trying to equal all 3 to fully benefit from Wise Oak, you can look for resists on two or three of them.

For the other affixes, our desired ones are related to damage, area damage, cold skills, fire damage, cold damage, spell damage, critical strike multiplier. Below are the affixes I've been looking for. There may be other useful ones.

Flask

Divine Life Flask or Eternal Life Flask

• Prefix: Bubbling/Seething/Panicked (up to your preference)
• Suffix: of Staunching

Quartz Flask

• Prefix: Chemist's
• Suffix: of Heat (if you don't have boots craft), of Reflexes (if you do)

Experimenter's Quicksilver Flask

• Prefix: Experimenter's (Alchemist's prefix is also good but lasts for almost half the time)
• Suffix: Adrenaline

Diamond Flask

• Prefix: Experimenter's
• Suffix: of Warding

Eternal Mana Flask (replace Quartz Flask for "no mana regen" maps)

• Prefix: Enduring
• Suffix: same as Quartz Flask

The Wise Oak

To be sure you're using it right, check your resistances on your character sheet. The higher value (between parenthesis) is your uncapped resistance. To benefit from it, you need your highest uncapped resistance to be fire. To fully benefit from it, you need all of your uncapped resistances to be equal. In this case, all elements will both be highest and lowest, meaning that you will receive less damage from all of them (and still deal more damage with fire).

For more gear details, see poe link

Enchants

Helmet

15% increased Cyclone attack speed (possibly the best option, makes it even easier to get to 15 APS but it's quite expensive)

Wave of Conviction's Exposure applies -6% Elemental Resistance (it seems quite rare, but increases your damage for every skill, so it's an option if you're done on APS)

40% increased Ice Nova damage (not so cheap but it's an alternative if you're low on currency)

Boots

Damage penetrates 10% resistances if you haven't killed recently (it'll basically only apply to bosses, but the rest will die too quickly, so it's by far the best option)
Adds 45 to 68 Fire Damage if you've Killed Recently (will basically only increase our damage during clear, but is still a strong option)
Those two are the strongest ones but there are some other options, not too strong but useful. Life regen, spell dodge, attack dodge, attack and cast speed, leech, movement speed. They're all good enchants you can opt to keep while equipping your character.

Gloves

I recommend "of Reflection" (creates a copy of you) or "of Spite" (nova of projectiles leaving chilled ground) enchantments. They both help your survivability. Still, I'd say this is more personal than the others, so feel free to pick whatever you want.