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Bone Prison

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Bone Prison
Summons a ring of bone to surround a target.
Class Necromancer
Skill Tree Poison and Bone Spells
Level 24
Prerequisites Teeth, Bone Armor, Corpse Explosion, Bone Wall, Bone Spear
Damage Type None
Mana Cost 27
Other Stats
Synergies Bone Armor, Bone Wall
Teeth: +15% Magic damage per level
Bone Armor: +15 damage absorbed per level
Bone Wall: +10% Life per level
Bone Spear: +7% Magic damage per level
Bone Spirit: +6% Magic damage per level
  • Receives synergy from:
Bone Armor: +8% Life per level
Bone Wall: +8% Life per level


Bone Prison is the third and last defensive skill of the Poison & Bone skill tree. It works just like Bone Wall except it surrounds and traps anyone, even yourself, in the middle of bones. It is a very useful spell if you decide to level it and use it wisely, it can serve as a better Tank than Golems.

Bone Prison in action

Bone Prison in action

Bone Prison can't trap Wraith monsters and some monsters can shoot projectiles through bones.

The Hit Points shown below are only for Normal difficulty. The Bone Prison hit points increase for Nightmare, and again for Hell Difficulty.

It is also an attack Diablo uses against you when you cast a town portal too close to him, though it is marked as "An Evil Force." In Diablo III, he uses this attack to trap your Follower prior to the final battle, forcing you to fight him alone; as well as using it as one of his main attacks during the battle with him. If you get caught in Diablo's Bone Prison, he will grab you by the throat and drain you of your Life before slamming you to the floor.


Similar to the Bone Wall, a Necromancer with this skill can summon a spirit wall of bone in the form of an enclosing ring. This prison traps all enemies within its circumference. Imprisoned within a cage of bone, the captives are held helpless until they can summon the strength to break through its skeletal confines or the Necromancer loses his hold over the spirits.

Skill ProgressionEdit

Duration: 24 seconds

Level 1 2 3 4 5 6 7 8 9 10 11
Mana Cost 27 26 25 24 23 22 21 20 19 18 17
Hit Points 22 26 31 36 41 45 50 55 60 64 69

Level 12 13 14 15 16 17 18 19 20 25
Mana Cost 16 15 14 13 12 11 10 9 8 3
Hit Points 74 79 83 88 93 98 102 107 112 137
Necromancer Skills
Summoning SpellsRaise SkeletonSkeleton MasteryClay GolemGolem MasteryRaise Skeletal MageBlood GolemSummon ResistIron GolemFire GolemRevive
Poison and Bone SpellsTeethBone ArmorPoison DaggerCorpse ExplosionBone WallPoison ExplosionBone SpearBone PrisonPoison NovaBone Spirit
CursesAmplify DamageDim VisionWeakenIron MaidenTerrorConfuseLife TapAttractDecrepifyLower Resist

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