For the Diablo III spell of the same name, see Bone Armor (Diablo III).
Bone Armor

Class: Necromancer (Diablo II)
Required Level: 1
Skill Tree: Poison and Bone Spells
Cost: 11 Mana

Creates a protective shield of bone that absorbs damage from physical attacks.

Damage Type: Physical
Synergies: Bone Wall, Bone Prison

Bone Armor is a Necromancer skill in Diablo II, and the only purely protective spell in their arsenal.


This spell summons a barrier created from the bones of fallen warriors. The armor revolves around the Necromancer, protecting him against all attacks. Although enchanted, the armor does take damage and will eventually crumble.


  • Gives synergy to:
Bone Wall: +10% Life per level
Bone Prison: +8% Life per level
  • Receives synergy from:
Bone Wall: +15 Damage absorbed from attacks
Bone Prison: +15 Damage absorbed from attacks

Bone Armor is a useful defensive skill, particularly early in the game. Daggermancers may benefit most from this skill as they have face melee damage as often as they fight ranged monsters, but any necromancer can benefit from the damage reduction.

Bone Armor can be extremely helpful in absorbing Physical Damage, preventing attacks from potentially killing users. The shield does not have a limit on how much damage it may absorb per attack, but the total amount of damage soaked per cast is limited.

Adding points into Bone Armor increases the armor's damage limit by 10 for each level, while adding core points into the synergies Bone Wall and Bone Prison increases the armor durability by 15. Putting one point in bone armor and more points in synergies is thus more efficient for making bone armor more durable. Additionally, adding to Bone Prison or Bone Wall would also increase Teeth, Bone Spear, and Bone Spirit damage, while adding to Bone Armor alone would only increase the life of Bone Walls and Prisons, and the Mana cost to cast the armor.

Skill ProgressionEdit

Level 1 2 3 4 5 6 7 8 9 10 11
Mana Cost 11 12 13 14 15 16 17 18 19 20 21
Damage Shield 20 30 40 50 60 70 80 90 100 110 120
Level 12 13 14 15 16 17 18 19 20 25
Mana Cost 22 23 24 25 26 27 28 29 30 35
Damage Shield 130 140 150 160 170 180 190 200 210 260

Bone ArmorEdit

Bone Armor Absorption 20 Life 320 Life 620 Life 810 Life
Break Points Initial Bone Armor Maxed Bone Wall Maxed Bone Wall and Prison Maxed Bone Wall, Prison and Armor

Diablo Melee

Avg 235 damage

in Hell Mode

survive 1 attack survive 2 attacks survive 3 attacks survive 4 attacks

Oblivion Knight Melee

Avg 202 damage

in Hell Mode

survive 1 attack survive 2 attacks survive 4 attacks survive 5 attacks

Megademon Melee

Avg 122 damage

in Hell Mode

survive 1 attack survive 3 attacks survive 6 attacks survive 7 attacks
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