Summoner Necromancer Build BiS Gear and Runes for Diablo 2 Resurrected

This is a high damage standard Summoning build.

• Weapon: Ethereal Beast
• Weapon Swap: Call to Arms and Spirit
• Shield: 35% Faster Cast Rate Spirit Monarch Shield
• Body Armor: Enigma
• Helm: Harlequin Crest
• Gloves: Trang-Oul's Clawss or Magefist
• Boots: Marrowwalk
• Belt: Arachnid Mesh
• Ring 1: The Stone of Jordan or Bul-Kathos' Wedding Band
• Ring 2: The Stone of Jordan or Bul-Kathos' Wedding Band
• Amulet: Mara's Kaleidoscope
• Charm 1: Necromancer Hellfire Torch
• Charm 2: Annihilus
• Charm 3: 9x Summoning Skiller Grand Charms with Life or enough Faster Hit Recovery to hit 86% or 152% Faster Hit Recovery
• Charm 4: 10 Small Charms with Life, Resistances, Mana, or Faster Hit Recovery, depending on needs

This is a standard Magic Find Summoning build.

• Weapon: Arm of King Leoric, Heart of the Oak (for 75% Faster Cast Rate), or Blade of Ali Baba
• Weapon Swap: Call to Arms and Spirit
• Shield: 35% Faster Cast Rate Spirit Monarch Shield
• Body Armor: Enigma
• Helm: Harlequin Crest
• Gloves: Chance Guards
• Boots: War Travelers
• Belt: Goldwrap
• Ring 1: Nagelring
• Ring 2: Nagelring
• Amulet: Mara's Kaleidoscope
• Charm 1: Necromancer Hellfire Torch
• Charm 2: Annihilus
• Charm 3: Gheed's Fortune
• Charm 4: All remaining Charms should be Small Charms with as much Magic Find as possible, preferably 7%

This is a variety of cheap gear sets to get you started.

• Weapon: Arm of King Leoric, Spirit Sword, White, or any wand with relevant Necromancer skill bonuses
• Shield: Spirit, Homunculus, Ancient's Pledge, Rhyme, or Lidless Wall
• Body Armor: Skin of the Vipermagi, Que-Hegan's Wisdom, or Stealth
• Helm: Lore or Tarnhelm
• Gloves: Magefist, Frostburn, or Chance Guards
• Boots: Waterwalk, Infernostride, or Hsarus' Iron Heel
• Belt: String of Ears, Goldwrap, or Nightsmoke
• Ring 1: Rare ring with Life, Resistances, and useful stats, or Nagelring
• Ring 2: Rare ring with Life, Resistances, and useful stats, or Nagelring
• Amulet: The Eye of Etlich or any amulet with relevant Necromancer skill bonuses
• Charm 1: Any Hellfire Torch for stats, even if not Necromancer-specific
• Charm 2: Annihilus
• Charm 3: Summoning Skiller Grand Charms
• Charm 4: Any Charm with Life, Resistances, Mana, Strength, or Faster Hit Recovery, depending on needs

You want an Offensive ( Might) Act 2 Nightmare Mercenary here because you do not want to have any Cold damage that could shatter corpses. The Aura also improves the damage of your Minions.

This is one of the best Mercenary gear setups across many characters, including the Summoner Necromancer.

• Weapon: Ethereal Pride
• Body Armor: Ethereal Fortitude
• Helm: Andariel's Visage socketed with a Ral Rune

This is a cheap gear set to get your Mercenary some damage and survivability on a budget.

• Weapon: Obedience
• Body Armor: Treachery
• Helm: Vampire Gaze