Bone Cage

Bone CageSpell, AoE, Physical, Duration, Nova
Tier: 3
Level: (1-20)
Cost: (7-80) Mana
Cast Time: 1.00 sec
Critical Strike Chance: 15.00%Raise a ring of bone spikes around you. The spikes are destroyed when enemies touch them, damaging and Pinning those enemies. Raising a new ring of spikes destroys the previous one.Deals (10-347) to (15-521) Physical Damage
Hits are Pinning
Pins Enemies as though dealing 50% more Damage
Cage radius is 1.8 metres
Explosion radius is 1 metre
Cage duration is 1.6 seconds

Additional Effects From 1-20% Quality:
Pins Enemies as though dealing +(2.5-50)% more DamageSkills can be managed in the Skills Panel.

Acquisition
Drop restricted
It can be obtained by engraving an Uncut Skill Gem.Metadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gem/SkillGemBoneCage

Bone Cage is a Physical spell skill.

Gem level progression

Level			Mana Cost
1	0	0	7
2	3	9	9
3	6	14	10
4	10	21	12
5	14	28	14
6	18	35	16
7	22	41	19
8	26	48	21
9	31	57	24
10	36	65	27
11	41	74	31
12	46	82	34
13	52	92	39
14	58	103	43
15	64	113	48
16	66	116	53
17	72	126	59
18	78	137	66
19	84	147	73
20	90	157	80

Recommended support gems

The following support gems are recommendations by GGG as listed in-game, and do not necessarily reflect optimal combinations or the views of the wiki.

Gem tier	Support gems
I	Bleed IBleed ISupport, Physical Category: Bleed Tier: 1 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports any skill that Hits enemies, giving it a chance to inflict Bleeding.Supported Skills have 50% chance to inflict BleedingPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Brutality IBrutality ISupport, Physical Category: Brutality Tier: 1 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports any skill that deals damage, boosting its Physical damage at the expense of all other Damage Types.Supported Skills deal 25% more Physical Damage Supported Skills deal no Chaos Damage Supported Skills deal no Elemental DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Spell CascadeSpell CascadeSupport Category: Spell Cascade Tier: 1Support Requirements: +5 IntSupports Spells that affect an area around you or a target location, causing those Spells to also target additional areas on either side of the target area, along a randomly chosen axis. Cannot support Channelling skills or Remote skills.Supported Skills have 20% less Area of Effect Cascades from Supported Skills have 20% less Area of Effect Supported Skills deal 30% less Damage Supported Skills also affect Areas on either side of the targeted Area along a random axisPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
II	Brutality IIBrutality IISupport, Physical Category: Brutality Tier: 2 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports any skill that deals damage, boosting its Physical damage at the expense of all other Damage Types.Supported Skills deal 30% more Physical Damage Supported Skills deal no Chaos Damage Supported Skills deal no Elemental DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Considered CastingConsidered CastingSupport, Spell Category: Considered Casting Tier: 2 Cost & Reservation Multiplier: 115%Support Requirements: +5 IntSupports Spell Skills that Hit Enemies and you cast yourself, boosting Damage at the cost of Cast Speed.Supported Spell Skills have 15% less Cast Speed Supported Spells deal 35% more DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Spell EchoSpell EchoSupport, Spell, AoE Category: Spell Echo Tier: 2 Cost & Reservation Multiplier: 150%Support Requirements: +5 IntSupports Spells that affect an area around you or a target location. Supported Spells echo, causing their effects to happen again after a short delay. Cannot support Channelling skills Remote skills or skills which are Triggered.Supported Spells Echo once Supported Skills have 30% less Cast Speed Echoes from Supported Spells have 40% increased Area of EffectPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
III	Astral ProjectionAstral ProjectionSupport Category: Astral Projection Tier: 3Support Requirements: +5 IntSupports Nova Skills, causing those Skills to take place at the targeted location when used instead of around you.Supported Skills Cast at the targeted location instead of around you Supported Skills have 25% less Area of EffectPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Bleed IIBleed IISupport, Physical Category: Bleed Tier: 3Support Requirements: +5 StrSupports any skill that Hits enemies, giving it a chance to inflict Bleeding.Supported Skills have 75% chance to inflict BleedingPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	ExtractionExtractionSupport, Spell Category: Extraction Tier: 3Support Requirements: +5 IntSupports Spell Skills which cause Damaging Hits. Using supported Spells will cause you to Sacrifice a portion of your Life on use, gaining extra Chaos Damage in exchange. Does not support Persistent Skills, Minion Skills, or Triggered Skills.Supported Skills Gain 35% of Damage as extra Chaos Damage Supported Skills Sacrifice 10% of Life on usePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
IV	Armour Break IIIArmour Break IIISupport, Physical Category: Armour Break Tier: 4Support Requirements: +5 StrSupports Skills that Hit Enemies, causing those Hits to Break Armour based on a portion of Physical Damage dealt. On Fully Breaking Armour with Supported Skills, you gain an Endurance Charge.Break Armour equal to 20% of Physical Damage dealt by Supported Skill 20% chance to gain an Endurance Charge when Supported Skills Fully Break ArmourPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Rapid Casting IIRapid Casting IISupport, Spell Category: Rapid Casting Tier: 4Support Requirements: +5 IntSupports Spells, causing them to cast faster.Supported Skills have 20% increased Cast SpeedPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
V	Bleed IIIBleed IIISupport, Physical Category: Bleed Tier: 5Support Requirements: +5 StrSupports any skill that Hits enemies, causing it to inflict Bleeding.Supported Skills have 100% chance to inflict BleedingPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	Brutality IIIBrutality IIISupport, Physical Category: Brutality Tier: 5 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports any skill that deals damage, boosting its Physical damage at the expense of all other Damage Types, as well as giving Hits from that skill a chance to ignore Physical Damage reduction.Supported Skills deal 30% more Physical Damage Supported Skills deal no Chaos Damage Supported Skills deal no Elemental Damage Hits with Supported Skills have 20% chance to ignore Enemy Physical Damage reductionPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.	HeftHeftSupport, Physical Category: Heft Tier: 5 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports Skills which deal Damage, increasing the maximum Physical Damage of their Hits.Supported Skills deal 30% more Maximum Physical Hit DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.

Item acquisition

Bone Cage has restrictions on where or how it can drop.

It can be obtained by engraving an Uncut Skill Gem.

Alternate skill effects

Bone Cage has the following alternate skill effects:

Item	Description

Version history

Version	Changes
0.3.0	The base damage scaling of all player spell and secondary damage skills has been tweaked to scale better in the late game. Generally speaking, spells that do not have damage number changes called out below will have near-identical base damage at low levels, roughly 5% more damage at gem level 20, and roughly 20% more damage at gem level 30. Removed "Barrageable" gem tag. [Undocumented]
0.2.1	Added "Barrageable" gem tag. [Undocumented]
0.2.0	Many Skills have had their base damage and/or damage growth per level rebalanced. Most of these changes are not specifically mentioned below as the changes are too widespread.
0.1.0e	Increased the damage growth per level on Unearth (non-Minion component), Bonestorm, Bone Cage, Bone Blast (Wand Skill) and Power Siphon (Wand Skill). Results in approximately 50% more damage at Gem Level 25. Bone Cage base Critical Strike Chance has been increased to 15% (from 13%).
0.1.0	Introduced to the game.