1. Strength - just enough for all the gear you plan to use. You should have all the Strength required from Enigma (if you plan to use it) so if you use an alternative set of gear with STR so that you can equip it, you should be fine without any additional points here
2. Dexterity - same as Strength - you only need enough Dexterity to meet gear requirements
3. Vitality - you should put all your remaining points here - this is your primary stat that boosts your survivability 
4. Energy - do not add any points into Energy. You should have enough Mana from Death's Web and Insight Aura on your Iron Golem

Even though you will find most of the skills allocated from this Tree, you are actually interested in just one of the Iron Golem. It's supposed to provide you with Insight Aura for increased Mana Regen and all the other Skills here are related to increasing his survivability and effectiveness

Skills:

1. Raise Skeleton [1/20] - allows you to summon Skeletons to fight for you, however, you are going to treat is as a prerequisite only
2. Skeleton Mastery [1/20] - increases the life of your revived minions. If you are going to use those to tank some of the damage, it's worth spending 1 point here
3. Clay Golem [1/20] - prerequisite only
4. Golem Mastery [1/20] - boosts the Life and Speed of your Golems. It's a must-have skill that boosts your Iron Golem's survivability
5. Summon Resist [1/20] - just like above. Passively increases Resistances of your summons, making them much more durable, so that you don't risk losing your Insight that often if your Iron Golem dies
6. Raise Skeletal Mage [1/20] - prerequisite only
7. Summon Resist [1/20] - Increases the Resists of your Summoned Minions. This makes your summons rare much better against elemental attacks, traps, or even simple fires. 
8. Blood Golem [1/20] - prerequisite only
9. Iron Golem [1/20] - creates a Golem from an item on the ground, which in this case should be Insight Runeword. It will then grant you the Meditation Aura for an increased Mana Regeneration Rate. Make sure to summon your Golem with Insight after you have obtained all the corresponding Passives and a bunch of extra Skill levels from your gear, or you may end up losing the Item if the Golem dies
10. Revive [1/20] - resurrects slain monsters to fight for you. Revived monsters are a great way to stop incoming enemies, projectiles, and generally take some of the damage 

CURSES TREE

This Tree contains various utility skills that can be used to debuff enemies with various effects. When playing solo, you are mainly going to use Amplify Damage or Lower Resists to increases your DPS but this can vary if you are playing in a team and other Curses may have better overall effectiveness

Skills:

1. Amplify Damage [1/20] - lowers the enemies' Resistance to physical damage greatly boosting your DPS output with Corpse Explosion
2. Weaken [1/20] - Prerequisite. Decreases the damage dealt by enemies caught inside the curse. You can use this curse to increase your survivability, but relying on the Bone Prison is a much safer option
3. Iron Maiden [1/20] - A curse that makes enemies receive whatever pain they inflict upon others. At level 1, this Curse reflects 200% of damage dealt back to the affected enemy. This is especially effective in the early game, so you should invest a point in it early. Later on, just treat is as a prerequisite to other skills only
4. Terror [1/20] - Causes monsters to run away in fear. Monsters run in the opposite direction of where Terror was cast. This can help you escape difficult situations but in most cases it's just a prerequisite to Decrepify and Lower Resist
5. Decrepify [1/20] - A crippling curse that halves enemy units' speed, damage, and physical resistances. Decrepify will help you to neutralize and effectively deal with though enemies by combining the effects of Weaken and Amplify Damage
6. Lower Resist [1/20] - reduces enemies' resistance that boots the Poison Damage of your Poison Nova and Fire portion of Corpse Explosion's damage, making it the primary Curse for this build

This is the core Skill Tree for this Necromancer build. It contains your primary DPS Skills: Poison Nova and Corpse Explosion, and primary defensive buff: Bone Armor. Obviously, you are also going to allocate all of their synergy skills that boost their effectiveness

Skills:

1. Teeth [1/20] - Prerequisite. It is a spell that fires several projectiles that fly at enemies dealing magic damage. You can use it during your first few levels, but as soon as you get Corpse Explosions, it simply deals a lot more damage
2. Bone Armor [1/20] - the core defensive skill on the Necromancer. It creates a shield around your character that absorbs incoming damage. Just spend one point here, which should be later increased by all your gear
3. Corpse Explosion [20/20] - one of the core DPS spells used in this build which causes corpses to explode dealing massive Fire/Physical Damage to enemies around it. It's an amazing skill for leveling, one of the main damage-dealing abilities in this build
4. Bone Wall [1/20] - Prerequisite. Used only to increases the Life absorbed by Bone Armor
5. Bone Spear [1/20] - Prerequisite only
6. Bone Prison [1/20] - Bone Armor's synergy skill that increases the amount of Life absorbed by Bone Armor, so make sure to allocate 1 point here
7. Poison Dagger [20/20] - a must-have prerequisite skill that also boosts the damage of your Poison Nova
8. Poison Explosion [20/20] - just like Poison Dagger, it's a prerequisite to Poison Nova and its' synergy skill
9. Poison Nova [20/20] - the core ability used in this build. It fires a ring of poison that expands in all directions obliterating enemies all over your screen. It's one of the best  AoE farming skills in the entire Diablo 2 Resurrected

HELMETS

Rare Circlet - aim to get +2 to Necromancer Skills, additional Faster Cast Rate, and possibly other valuable stats like Life, Mana, and extra Sockets for 5/5 Poison Rainbow Facets Jewels

• Required Level: varies. 
• In Rare Diadems, look for:
  • +1/2 to Necromancer Skills 
  • 20% Faster Cast Rate
  • Life
  • Mana on Kill
  • Magic Find 
  • Resistances 
  • Attributes 
  • Sockets

Crown of Ages (Corona) - a great more-defensive option which grants +1 to all Skills, high FHR, Damage Reduction, Resistances, and has 1-2 Sockets which should be filled with 5/5 Poison Facets

• Defense: 349-399
• Required Level: 82
• Required Strength: 174
• Durability: N/A
  • +50% Enhanced Defense
  • +100-150 Defense
  • +1 To All Skills
  • Damage Reduced By 10-15%
  • All Resistances +20-30
  • +30% Faster Hit Recovery
  • Socketed (1-2)
  • Indestructible

Harlequin Crest (Shako) - Harlequin Crest is a great pick for this slot, especially if you want some extra Magic Find without sacrificing offensive power. You'll get +2 to All Skills, +50% Magic Find, and a lot of Attributes from it

• Defense: 98 to 141 
• Required Level: 62
• Required Strength: 50
• Durability: 20
  • +2 to All Skills 
  • +1-148 to Life (+1.5 per Character Level) 
  • +1-148 to Mana (+1.5 per Character Level) 
  • Damage Reduced By 10% 
  • 50% Better Chance of Getting Magic Items 
  • +2 to All Attributes 

WEAPONS

Death's Web (Unearthed Wand) - the BiS weapon for this build. It grants up to  +4 Poison and Bone Spells in total and reduces Enemy Poison Resistance by up to 50%. You also get Mana After each kill, allowing you to spam your Spells effortlessly, making it an irreplaceable piece in this build

• One-Hand Damage: 22 To 28
• Required Level: 66
• Required Strength: 25
• Durability: 18
• Staff Class - Fast Attack Speed
  • +50% Damage to Undead
  • -40-50% To Enemy Poison Resistance
  • +7-12 To Mana After Each Kill
  • +7-12 Life After Each Kill
  • +2 To All Skills
  • +1-2 To Poison and Bone Spells (Necromancer Only)

Spirit Weapon (Runeword) - a very solid Runeword for a Poison Necro (in both weapon and shield). It gives you everything you might need - Skill Levels, Faster Cast Rate, Life Leech, Bonus Mana, Extra Life, and Faster Hit Recovery. You should replace it eventually with class-specific Necro Wands at some point, but initially, Spirit should be much easier to obtain early in the Ladder

• Damage:  Depends on base Weapon
• Required Level: 25
• Required Dexterity: Depends on base Weapon
• Required Strength: Depends on base Weapon
• Durability: Depends on base Weapon 
• Tal + Thul + Ort + Amn  
  • +2 To All Skills 
  • +25-35% Faster Cast Rate (varies) 
  • +55% Faster Hit Recovery 
  • Adds 1-50 Lightning Damage 
  • Adds 3-14 Cold Damage 3 Second Duration (Normal) 
  • +75 Poison Damage Over 5 Seconds 
  • 7% Life Stolen Per Hit 
  • +250 Defense Vs. Missile 
  • +22 To Vitality 
  • +89-112 To Mana (varies) 
  • +3-8 Magic Absorb (varies)

Heart of the Oak (Runeword) - another extremely powerful Runeword for caster builds. It grants a whopping +3 to All Skill and 40% FCR which makes it much easier to reach the desired breakpoints. You also get extra Mana, Resistances and other valuable bonuses

• Damage:  Depends on base Weapon
• Required Level: 55
• Required Dexterity: Depends on base Weapon
• Required Strength: Depends on base Weapon
• Durability: Depends on base Weapon 
• Ko + Vex + Pul + Thul 
  • +3 To All Skills 
  • +40% Faster Cast Rate
  • +75% Damage To Demons 
  • +100 To Attack Rating Against Demons 
  • Adds 3-14 Cold Damage, 3 sec. Duration (Normal) 
  • 7% Mana Stolen Per Hit 
  • +10 To Dexterity 
  • Replenish Life +20 
  • Increase Maximum Mana 15% 
  • All Resistances +30-40 (varies) 
  • Level 4 Oak Sage (25 Charges) 
  • Level 14 Raven (60 Charges) 

White (Runeword) - should be considered a budget alternative for the previously mentioned Weapons. If you socket your Dol and Io Runes in a base white Wand with +2/3 to Poison Nova it's a very viable weapon for this build

• Hit Causes Monster To Flee 25%
• +10 To Vitality
• +3 To Poison and Bone Spells (Necromancer Only)
• +3 To Bone Armor (Necromancer Only)
• +2 To Bone Spear (Necromancer Only)
• +4 To Skeleton Mastery (Necromancer Only)
• Magic Damage Reduced By 4
• 20% Faster Cast Rate
• +13 To Mana

Trang'Oul's Wings (Cantor Trophy) - a very strong shield for this build with a bunch of defensive stats and attributes. Sadly, it doesn't grant any FCR, but if you are using any of the other Trang'Oul's pieces, you will benefit from it greatly

• Defense: 175-189 (varies)(Base Defense: 50-64)
• Required Level: 54
• Required Strength: 50
• Durability: 20
• Chance to Block: 60%
• (Necromancer Only)
  • +125 Defense
  • +30% Increased Chance Of Blocking
  • Poison Resist +40%
  • Fire Resist +38-45% (varies)
  • +15 To Dexterity
  • +25 To Strength
  • +2 To Poison And Bone Skills (Necromancer Only)

Set bonuses:

• -25% To Enemy Poison Resistance (3 Items)
• Replenish Life +15 (4 Items)

Spirit Shield (Runeword) - This Runeword offers a great balance of offensive and defensive power. You will need a 4 open socket Monarch for it, though. 

• Defense: Depends on base Shield 
• Required Level: 25 
• Required Strength: Depends on base Shield 
• Durability: Depends on base Shield 
• Tal + Thul + Ort + Amn 
  • +1 To All Skills 
  • +25-35% Faster Cast Rate (varies) 
  • +55% Faster Hit Recovery 
  • +250 Defense Vs. Missile 
  • +22 To Vitality 
  • +89-112 To Mana (varies) 
  • Cold Resist +35% 
  • Lightning Resist +35% 
  • Poison Resist +35% 
  • +3-8 Magic Absorb (varies) 
  • Attacker Takes Damage of 14 

Homunculus (Hierophant Trophy) - defensively, a very strong off-hand item that boosts your Chance of Blocking and increases your Block Rate. Also grants tons of Resistances and Mana Regen, while increasing the level of your Necromancer Skills and Curses

• Defense: 177-213
• Defense: 58-70
• Required Level: 42
• Required Strength: 58
• Durability: 20
• Chance to Block: 72%
• (Necromancer Only)
  • +150-200% Enhanced Defense
  • +5 To Mana After Each Kill
  • 40% Increased Chance of Blocking
  • 30% Faster Block Rate
  • +2 To Necromancer Skill Levels
  • +20 To Energy
  • Regenerate Mana 33%
  • All Resistances +40
  • +2 To Curses Skills (Necromancer Only)

Call to Arms (Runeword) - if you are playing solo or just don't have a Barbarian on your team, it's great to have Call to Arms in your Weapon Swap for the powerful Warcries that boost your stats. Just equip it with a random off-hand that boosts your FCR and all Skill levels  by 2 to get the best out of it (Spirit Runeword for example)

• +1 To All Skills
• +40% Increased Attack Speed
• +250-290% Enhanced Damage
• Adds 5-30 Fire Damage
• 7% Life Stolen Per Hit
• +2-6 To Battle Command
• +1-6 To Battle Orders
• +1-4 To Battle Cry
• Prevent Monster Heal
• Replenish Life +12
• 30% Better Chance of Getting Magic Items

AMULETS

Rare/Magic Amulet with + Necromancer/Poison and Bone Spells with additional stats like Life/MF/FCR is simply perfect for this build. But as always, the better the price the more expensive or harder to find it gets

• Required Level: varies. 
• In Magic Amulets, look for:
  • + to Poison and Bone Spells. 
  • Faster Cast Rate
  • Magic Find
  • Resistances
• In Rare Amulets, look for:
  • + to Necromancer Skills 
  • Faster Cast Rate
  • Life
  • Magic Find 
  • Resistances 
  • Attributes 

Mara's Kaleidoscope - This powerful Amulet will give you +2 to all Skills and a lot of Resistances. It's expensive but worth its price

• Required Level: 67
  • +2 To All Skills 
  • All Resistances +20-30 (varies) 
  • +5 To All Attributes 

ARMORS

Bramble (Runeword) - one of the best armors in terms of raw DPS. Not using Enigma though may hurt your mobility unless you find a Crafted Amulet or Diadem with Teleport Charges

• Defense: Depends on base Armor 
• Required Level 61
• Required Strength: Depends on base Armor 
• Durability: Depends on base Armor 
• Ral + Ohm + Sur + Eth  
  • Level 15-21 Thorns Aura When Equipped
  • +50% Faster Hit Recovery
  • +25-50% To Poison Skill Damage
  • +300 Defense
  • Increase Maximum Mana 5%
  • Regenerate Mana 15%
  • +5% To Maximum Cold Resist
  • Fire Resist +30%
  • Poison Resist +100%
  • +13 Life After Each Kill
  • Level 13 Spirit of Barbs (33 Charges)

Skin of the Vipermagi (Serpentskin Armor) - one of the best caster armors in Diablo 2 Resurrected which grants bonus to all Skills and Faster Cast Rate which is quite unique in this slot

• Defense: 279
• Required Strength: 43
• Durability: 24
• Required Level: 29
  • +120% Defense
  • +1 to All Skills
  • 30% Faster Cast Rate
  • Magic Damage Reduced By 9-13 (varies) 
  • All Resistances +20-35 (varies) 

[BIS] Enigma (Runeword) -  our top recommendation for this slot. It takes your mobility to a completely different level, adds 2 bonus Skills and boosts your Magic Find stat - simply a piece impossible to replace

• Defense: Depends on base Armor 
• Required Level: 65 
• Required Strength: Depends on base Armor 
• Durability: Depends on base Armor 
• Jah + Ith + Ber  
  • +2 To All Skills 
  • +45% Faster Run/Walk 
  • +1 To Teleport 
  • +750-775 Defense (varies) 
  • +(0.75*Clvl) To Strength (Based On Character Level) 
  • Increase Maximum Life 5% 
  • Damage Reduced By 8% 
  • +14 Life After Each Kill 
  • 15% Damage Taken Goes To Mana 
  • (1*Clvl)% Better Chance of Getting Magic Items (Based On Character Level)

RINGS

Magic Crafted Rings with Faster Cast Rate, Resistances, Magic Find, and Bonuses to Life is what you should be looking for early

• Required Level: varies. 
• In Rare Rings, look for:
  • Faster Cast Rate
  • Magic Find 
  • Resistances 
  • Attributes 
  • Life 

Raven Frost - You should get this Ring as it's one of just a few items in the game that give Freeze Immunity

• Required Level: 45
  • +150-250 Attack Rating (varies) 
  • 15-45 Cold Damage 
  • +15-20 Dexterity (varies) 
  • +40 Mana 
  • Cold Absorb 20%
  • Cannot be Frozen 

The Stone of Jordan - a great late-game ring that will make you more powerful in almost all respects by increasing the level of all your Skills and Maximum Mana

• Required Level: 29
  • +1 to All Skills
  • Increase Maximum Mana by 25% 
  • Adds 1-12 Lightning Damage 
  • +20 to Mana

GLOVES

[BIS] Trang'Ouls Claws (Heavy Bracers) -  from these, you will get a 20% Increased Faster Cast Rate, a nice boost to Poison Skill Damage, and extra Curse levels. Simply no other pair in the game gets close to it

• Defense: 37-44 
• Required Level: 45
• Required Strength: - 58
• Durability: 16
  • +20% Faster Cast Rate 
  • Cold Resist +30% 
  • +30 Defense 
  • +25% Poison Skill Damage 
  • +2 To Curses (Necromancer Only) 

BOOTS

[BIS] War Traveler (Battle Boots) - the top recommendation for the Boosts slot. War Travelers offer the highest Magic Find stat you can find on Boots, and extra Attributes, Faster Run/Walk Speed, and prevent Stamina drain

• Defense: 120-139 
• Required Level: 42
• Required Strength: 95
• Kick Damage: 37-64 
• Durability: 48
  • +150-190% Enhanced Defense 
  • 25% Faster Run/Walk 
  • +10 to Vitality 
  • +10 to Strength 
  • Adds 15-25 Damage 
  • +40% Slower Stamina Drain 
  • Attacker Takes Damage Of 5-10 
  • 30-50% Better Chance of Getting Magic Items 

Aldur's Advance (Battle Boots) - a great pair in terms of defenses. It offers very high bonus Life, Attributes, and Fire Resistance, so you will surely be able to add other stats on your Charms and other gear 

• Defense: 39-47
• Required Level: 45
• Required Strength: 95 
  • Indestructible
  • 40% Faster Run/Walk
  • +180 Maximum Stamina
  • 10% Damage Taken Goes To Mana
  • Heal Stamina Plus +32%
  • +50 To Life
  • Fire Resist +40-50%

BELTS

Arachnid Mesh (Spiderweb Sash) - This belt is ideal for a summon Necromancer as it gives +1 to All Skills, which is its most important stat by far. 

• Defense: 119-138 
• Potion Slots: 16 
• Required Level: 80
• Required Strength: 50
• Durability: 12
  • +90-120% Enhanced Defense  
  • Slows Target by 20% 
  • +1 To All Skills 
  • 20% Faster Cast Rate 
  • Maximum Mana 5% 
  • Level 3 Venom (11 Charges) 

Trang'Oul's Girth (Troll Belt) - a very strong Belt, which is highly recommended for the Freeze immunity (allows you to get an extra +to Skills Ring in place of Raven Frost) and also very strong defensive bonuses which include extra Life and Resistances

• Defense: 133-166 
• Potion Slots: 16 
• Required Level: 62
• Required Strength: 91
• Durability: 18
  • +75-100 Defense (varies)
  • Requirements -40%
  • Cannot Be Frozen
  • Replenish Life +5
  • +25-50 To Mana (varies)
  • +30 Maximum Stamina
  • +66 To Life

Set bonuses:

• Cold Resist +40% (3 Items)

CHARMS

1. Grand Charms -  you should nearly entirely fill your inventory with Poison and Bone Skillers, possibly with an extra Life bonus
2. Small Charms - make sure to get all the Missing Resistances here, also Life, MF, and FCR bonuses are considered top tier affixes here
3. As for Unique Charms, we recommend using all three major ones: Hellfire Torch, Annihilus, and Gheed's Fortune with the highest MF value you can afford 

MERCENARY

We recommend picking up Act 2 Might Mercenary which offers the highest DPS for a Merc and helps you deal with Poison Resistant enemies quickly. You should equip him with Infinity as soon as you can afford, for its' Conviction Aura, which boosts your overall DPS output significantly (mainly your Merc's and Corpse Explosion, but the increase is truly significant)

1. Infinity Rune Word in Ethereal Elite Polearm - This provides the Conviction Aura that increases your Corpse Explosion's and Mercenary's DPS significantly. It also has very high base damage on its own
2. Fortitude Rune Word in Armor - the best armor for your Mercenary defense-wise
3. Vampire Gaze or Andariel's Visage for extra Life Steal and boosting his survivability

ENDNOTE

This is our premiere Diablo 2 Resurrected Poison Nova Necromancer build where we tried to include all of the important information on how to set up this character while keeping the guide as compact as possible. If we've missed something of importance, please let us know! 

If you have any Build requests, please post them in the Comments section below. We will be happy to cover your most requested builds in the future! Also, we hope that you have found this guide useful and informative. Also, we will be happy to receive constructive criticism that will help us improve our future work, so don't hesitate to give us your feedback.