Bone Prison

Bone Prison is a Necromancer skill from the Corpse & Macabre skill tree. Its features are:

Essence

Grants Player	Exploits Condition
N/A
Vulnerable
Fortifies
Macabre
Bone

'Creates Condition' means this skill creates this condition i.e it could make a target Vulnerable that other skills can take advantage of. 'Exploits Condition' means this skill takes advantage of a condition, not necessarily of its own making. So for example another skill might Stun and this skill could take advantage of that.

Bone Prison Details and Upgrades

Bone Prison Cooldown: 15 seconds Unearth a prison of bone with 120 Life that surrounds the target area for 6 seconds. Tags: Macabre, Bone

Upgrades

Enhanced Bone Prison Enemies inside of Bone Prison when cast are made Vulnerable and take x15% increased damage for 8 seconds.	Ghastly Bone Prison Casting Bone Prison grants 40 Essence. Trapping a Boss generates another 25 Essence.
	Dreadful Bone Prison Reduce your active Cooldowns by 0.5 seconds for each enemy trapped by Bone Prison, up to 5 seconds.

Items that work with Bone Prison

The following items either:

• Grant a bonus when using Bone Prison
• Create a condition Bone Prison can exploit
• Exploit a condition Bone Prison creates

Legendary Aspects

Aspect of Bursting Bones	Offensive	When a segment of Bone Prison is destroyed or expires, it deals 113 - 203 damage in an area around itself. Gloves, Offhand, 1H Weapon, 2H Weapon (+100%), Ring, Amulet (+50%)	Path of the Blind (Map)	Dry Steppes	Necromancer
Aspect of Plunging Darkness	Offensive	Bone Prison spawns a pool of Blight that deals 80 - 140% [x] bonus damage over 6 seconds. Gloves, Offhand, 1H Weapon, 2H Weapon (+100%), Ring, Amulet (+50%)	Rimescar Cavern (Map)	Fractured Peaks	Necromancer
Bone Duster's Aspect	Offensive	Bone Spear deals 20-40% increased damage to enemies within Bone Prison and the first Bone Spear to hit each enemy within is guaranteed to Overpower. Gloves, Offhand, 1H Weapon, 2H Weapon (+100%), Ring, Amulet (+50%)	N/A	Extraction	Necromancer
Imprisoned Spirit's Aspect	Offensive	When Bone Spirit explodes inside a Bone Prison, it explodes an additional time, dealing 40 - 80% of normal damage. Bone Spirit now prioritizes enemies inside a Bone Prison. Gloves, Offhand, 1H Weapon, 2H Weapon (+100%), Ring, Amulet (+50%)	N/A	Extraction	Necromancer

* Extraction means the Legendary Aspect can be removed from any Legendary item at the Occultist. A dungeon name means the Aspect will be added to your Codex of Power as a reward after completing that dungeon.

Unique Items

There are no Unique Items that affect Bone Prison.

Changes to Bone Prison

Patch 1.3.3, March 5, 2024

• Enhanced Bone Prison
  • Previous: Enemies inside Bone Prison are Vulnerable.
  • New: Enemies inside of Bone Prison when cast are made Vulnerable for 8 seconds.

Patch 1.3.0, January 23, 2024

• Friendly players and Minions can now freely pass through Bone Prison walls.
• The functionality of Enhanced Bone Prison and Ghastly Bone Prison have been swapped.
• Enhanced Bone Prison - Enemies inside of Bone Prison are Vulnerable.
• Ghastly Bone Prison - If an enemy is trapped by Bone Prison, gain 25 Essence, plus an additional 5 per enemy trapped.
• Dreadful Bone Prison
  • Previous: Fortify for 8% of your Maximum Life for each enemy trapped by Bone Prison.
  • New: Reduce your active cooldowns by 0.5 seconds for each enemy trapped by Bone Prison, up to 3 seconds.

Patch 1.2.0, October 17, 2023

• Dreadful Bone Prison
  • Fortify amount changed from being based on Base Life to Maximum life.
  • Decompose time to make a Corpse reduced from 2 to 1.5 seconds.

Patch 1.1.0a, July 18, 2023

• Initial Essence gained increased from 15 to 25.

Patch 1-0-3, June 27, 2023

• Cooldown reduced from 20 to 18 seconds.
• Dreadful Bone Prison - Fortify increased from 5% to 8%.