BoneshatterAttack, Melee, Strike, AoE, Duration, Physical Level: (1-20) Cost: 5 Mana Attack Speed: 85% of base Attack Damage: (200-250)% of base Effectiveness of Added Damage: (200-250)%Requires Level 28Attack enemies with a forceful melee strike that also hurts you. Successive uses will raise the damage dealt both to enemies and you. Stunning an enemy with the strike releases a damaging pulse. Requires a Mace, Sceptre, Axe or Staff.(11-158) to (17-238) Added Attack Physical Damage +0.2 metres to Melee Strike Range Gain 1 Trauma the first time this Attack Hits an Enemy Take (6-194) Physical Damage per Trauma when you gain Trauma Trauma lasts 6.0 seconds (2-4)% more Damage per Trauma Pulse has 15% increased Area of Effect per 0.1s of Stun Duration, up to 400%
Additional Effects From 1-20% Quality: +(0.05-1)% more Damage per TraumaPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Boneshatter is a meleeattackskill that strikes enemies forcefully and also hurts you. Successive uses will raise the damage dealt both to enemies and you through Trauma stacks. Stunning an enemy with the strike releases a damaging area of effect pulse.
BoneshatterBoneshatterAttack, Melee, Strike, AoE, Duration, Physical Level: (1-20) Cost: 5 Mana Attack Speed: 85% of base Attack Damage: (200-250)% of base Effectiveness of Added Damage: (200-250)%Requires Level 28Attack enemies with a forceful melee strike that also hurts you. Successive uses will raise the damage dealt both to enemies and you. Stunning an enemy with the strike releases a damaging pulse. Requires a Mace, Sceptre, Axe or Staff.(11-158) to (17-238) Added Attack Physical Damage +0.2 metres to Melee Strike Range Gain 1 Trauma the first time this Attack Hits an Enemy Take (6-194) Physical Damage per Trauma when you gain Trauma Trauma lasts 6.0 seconds (2-4)% more Damage per Trauma Pulse has 15% increased Area of Effect per 0.1s of Stun Duration, up to 400%
Additional Effects From 1-20% Quality: +(0.05-1)% more Damage per TraumaPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. cannot be supported by Trauma SupportTrauma SupportPhysical, Support, Melee, Attack, Strike, Duration Icon: # Level: (1-20) Cost & Reservation Multiplier: 140%Requires Level 38Supports melee strike skills that do not inherently apply Trauma. Cannot support triggered skills, Vaal skills, or skills used by things other than you. Cannot modify the skills of minions.Supported Skills have (3-11) to (4-24) Added Attack Physical Damage per Trauma Supported Skills have 5% increased Stun Duration per Trauma Gain 1 Trauma the first time a Supported Attack Hits an Enemy Take (13-146) Physical Damage per Trauma when you gain Trauma from Supported Skills Trauma lasts (5.0-6.9) seconds Supported Skills can only be used with Axes, Maces, Sceptres or Staves
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% reduced Enemy Stun ThresholdThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.. Skills that gain bonuses based on your Trauma stacks do not care about the source of that trauma; for example, if you use BoneshatterBoneshatterAttack, Melee, Strike, AoE, Duration, Physical Level: (1-20) Cost: 5 Mana Attack Speed: 85% of base Attack Damage: (200-250)% of base Effectiveness of Added Damage: (200-250)%Requires Level 28Attack enemies with a forceful melee strike that also hurts you. Successive uses will raise the damage dealt both to enemies and you. Stunning an enemy with the strike releases a damaging pulse. Requires a Mace, Sceptre, Axe or Staff.(11-158) to (17-238) Added Attack Physical Damage +0.2 metres to Melee Strike Range Gain 1 Trauma the first time this Attack Hits an Enemy Take (6-194) Physical Damage per Trauma when you gain Trauma Trauma lasts 6.0 seconds (2-4)% more Damage per Trauma Pulse has 15% increased Area of Effect per 0.1s of Stun Duration, up to 400%
Additional Effects From 1-20% Quality: +(0.05-1)% more Damage per TraumaPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. to generate trauma, skills supported by Trauma SupportTrauma SupportPhysical, Support, Melee, Attack, Strike, Duration Icon: # Level: (1-20) Cost & Reservation Multiplier: 140%Requires Level 38Supports melee strike skills that do not inherently apply Trauma. Cannot support triggered skills, Vaal skills, or skills used by things other than you. Cannot modify the skills of minions.Supported Skills have (3-11) to (4-24) Added Attack Physical Damage per Trauma Supported Skills have 5% increased Stun Duration per Trauma Gain 1 Trauma the first time a Supported Attack Hits an Enemy Take (13-146) Physical Damage per Trauma when you gain Trauma from Supported Skills Trauma lasts (5.0-6.9) seconds Supported Skills can only be used with Axes, Maces, Sceptres or Staves
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% reduced Enemy Stun ThresholdThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket. will still be granted added Physical Damage even if they themselves did not generate the trauma.
Gaining Trauma
Hitting an enemy with BoneshatterBoneshatterAttack, Melee, Strike, AoE, Duration, Physical Level: (1-20) Cost: 5 Mana Attack Speed: 85% of base Attack Damage: (200-250)% of base Effectiveness of Added Damage: (200-250)%Requires Level 28Attack enemies with a forceful melee strike that also hurts you. Successive uses will raise the damage dealt both to enemies and you. Stunning an enemy with the strike releases a damaging pulse. Requires a Mace, Sceptre, Axe or Staff.(11-158) to (17-238) Added Attack Physical Damage +0.2 metres to Melee Strike Range Gain 1 Trauma the first time this Attack Hits an Enemy Take (6-194) Physical Damage per Trauma when you gain Trauma Trauma lasts 6.0 seconds (2-4)% more Damage per Trauma Pulse has 15% increased Area of Effect per 0.1s of Stun Duration, up to 400%
Additional Effects From 1-20% Quality: +(0.05-1)% more Damage per TraumaPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. or strike skill (other than Boneshatter) supported by Trauma SupportTrauma SupportPhysical, Support, Melee, Attack, Strike, Duration Icon: # Level: (1-20) Cost & Reservation Multiplier: 140%Requires Level 38Supports melee strike skills that do not inherently apply Trauma. Cannot support triggered skills, Vaal skills, or skills used by things other than you. Cannot modify the skills of minions.Supported Skills have (3-11) to (4-24) Added Attack Physical Damage per Trauma Supported Skills have 5% increased Stun Duration per Trauma Gain 1 Trauma the first time a Supported Attack Hits an Enemy Take (13-146) Physical Damage per Trauma when you gain Trauma from Supported Skills Trauma lasts (5.0-6.9) seconds Supported Skills can only be used with Axes, Maces, Sceptres or Staves
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% reduced Enemy Stun ThresholdThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket. will grant you a Trauma stack, giving more Damage or added Physical Damage respectively. However, you will also take Physical Damage per Trauma stack upon gaining a new one. Only one stack can be obtained per attack, regardless of the number of enemies hit. Repeated attacks from Multistrike SupportMultistrike SupportAttack, Melee, Support Icon: 3 Level: (1-20) Cost & Reservation Multiplier: 150%Requires Level 38Supports melee attack skills, making them repeat twice when used, targeting a random enemy each time. Cannot support Vaal skills, channelling skills or triggered skills.Supported Skills Repeat 2 additional times Supported Skills have (35-44)% more Melee Attack Speed Supported Skills deal (30-20)% less Attack Damage First Repeat of Supported Skills deals 22% more Damage Second Repeat of Supported Skills deals 44% more Damage
Additional Effects From 1-20% Quality: Supported Skills deal (0.5-10)% increased Melee DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket. will also not grant additional Trauma stacks and only inflicts self-damage every 3rd hit. This can be used to reduce the gain and impact of Trauma for builds incapable of tanking high stacks of Trauma.
Each Trauma stack counts as an individual buff, with each Trauma stack having its own duration. The (now drop-disabled) Mantra of FlamesMantra of Flames Crimson JewelLimited to: 1Adds (3-5) to (8-12) Fire Attack Damage per Buff on you Adds (2-3) to (5-8) Fire Spell Damage per Buff on youThe strong grow stronger still.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket. Jewel therefore grants a damage bonus for each stack of Trauma. Linking Boneshatter or a Trauma skill with Increased Duration SupportIncreased Duration SupportSupport, Duration Icon: D Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 31Supports any skill with a duration.Supported Skills have (45-64)% increased Skill Effect Duration
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% increased Skill Effect DurationThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket./Efficacy SupportEfficacy SupportSupport, Duration Icon: a Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 8Supports any skill that deals damage or has a duration.Supported Skills deal (15-24)% more Damage over Time Supported Skills have (15-24)% increased Skill Effect Duration
Additional Effects From 1-20% Quality: Supported Skills deal (0.5-10)% increased Damage over TimeThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket., cursing yourself/being cursed with Temporal ChainsTemporal ChainsSpell, AoE, Duration, Curse, Hex Level: (1-20) Cost: (16-33) Mana Cast Time: 0.50 secRequires Level 24Curses all enemies in an area, lowering their action speed and making other effects on them expire more slowly.Base duration is (5.00-8.80) seconds +(0-1) metre to radius 50% less Effect of Curse against Players Cursed Normal and Magic Enemies have (15-29)% less Action Speed Other effects on Cursed enemies expire 25% slower Cursed Rare and Unique Enemies have (9-18)% less Action Speed
Additional Effects From 1-20% Quality: (1-20)% increased Curse DurationPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., or gaining skill effect duration elsewhere will increase the duration of each Trauma buff stack, reducing the need for high attack speed to maintain high Trauma.
Damage taken from Trauma
With a level 20 gem and N current Trauma stacks, you will take (194(BoneshatterBoneshatterAttack, Melee, Strike, AoE, Duration, Physical Level: (1-20) Cost: 5 Mana Attack Speed: 85% of base Attack Damage: (200-250)% of base Effectiveness of Added Damage: (200-250)%Requires Level 28Attack enemies with a forceful melee strike that also hurts you. Successive uses will raise the damage dealt both to enemies and you. Stunning an enemy with the strike releases a damaging pulse. Requires a Mace, Sceptre, Axe or Staff.(11-158) to (17-238) Added Attack Physical Damage +0.2 metres to Melee Strike Range Gain 1 Trauma the first time this Attack Hits an Enemy Take (6-194) Physical Damage per Trauma when you gain Trauma Trauma lasts 6.0 seconds (2-4)% more Damage per Trauma Pulse has 15% increased Area of Effect per 0.1s of Stun Duration, up to 400%
Additional Effects From 1-20% Quality: +(0.05-1)% more Damage per TraumaPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.)/497(Boneshatter of Complex TraumaBoneshatter of Complex TraumaAttack, Melee, Strike, AoE, Duration, Physical Level: (1-20) Cost: 5 Mana Attack Speed: 85% of base Attack Damage: (200-250)% of base Effectiveness of Added Damage: (200-250)%Requires Level 28Attack enemies with a forceful melee strike that also hurts you. Successive uses will raise the damage dealt both to enemies and you. Stunning an enemy with the strike releases a damaging pulse. Requires a Mace, Sceptre, Axe or Staff.(11-158) to (17-238) Added Attack Physical Damage +0.2 metres to Melee Strike Range Lose all Trauma on reaching 10 Trauma Gain 1 Trauma the first time this Attack Hits an Enemy Take (18-582) Physical Damage per Trauma when you gain Trauma Trauma lasts 6.0 seconds (8-15)% more Damage per Trauma Pulse has 15% increased Area of Effect per 0.1s of Stun Duration, up to 400%
Additional Effects From 1-20% Quality: +(0.25-5)% more Damage per TraumaPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.)146(Trauma SupportTrauma SupportPhysical, Support, Melee, Attack, Strike, Duration Icon: # Level: (1-20) Cost & Reservation Multiplier: 140%Requires Level 38Supports melee strike skills that do not inherently apply Trauma. Cannot support triggered skills, Vaal skills, or skills used by things other than you. Cannot modify the skills of minions.Supported Skills have (3-11) to (4-24) Added Attack Physical Damage per Trauma Supported Skills have 5% increased Stun Duration per Trauma Gain 1 Trauma the first time a Supported Attack Hits an Enemy Take (13-146) Physical Damage per Trauma when you gain Trauma from Supported Skills Trauma lasts (5.0-6.9) seconds Supported Skills can only be used with Axes, Maces, Sceptres or Staves
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% reduced Enemy Stun ThresholdThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.)) *(N+1) physical damage (before damage mitigation) upon your next attack.
The damage taken per Trauma stack counts as a hit, which means that skills like VengeanceVengeanceTrigger, Attack, AoE, Physical, Melee Level: (1-20) Cooldown Time: 1.20 sec Can Store 1 Use(s) Attack Damage: (170-255)% of base Effectiveness of Added Damage: (170-255)%Requires Level 24Chance to perform a swift counter-attack against all enemies around you when you are hit. Weapon range increases the area of this attack. Requires a Melee Weapon.(8-56) to (12-85) Added Attack Physical Damage 30% chance to Trigger this Skill when Hit
Additional Effects From 1-20% Quality: (1-20)% chance to Trigger this Skill when HitPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. will trigger, Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger Icon: ! Level: (1-20) Cost & Reservation Multiplier: 250% Cooldown Time: 0.25 sec Can Store 1 Use(s)Requires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.This Gem can only Support Skill Gems requiring Level (38-70) or lower Supported Skills deal (65-27)% less Damage Trigger Supported Spells when you take (528-3272) total Damage from Hits
Additional Effects From 1-20% Quality: Supported Skills require (0.5-10)% reduced amount of Damage taken to TriggerThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket. will trigger, etc. It also allows your armour and/or physical damage reduction to prevent some of the physical damage taken. However, the damage cannot be blocked or evaded via evasion rating/dodge. "Avoid damage from hits" effects (e.g. Elusive) do work, however.
Damage conversion modifiers do not affect the damage from Trauma. However, damage taken as modifiers such as #% of Physical Damage from Hits taken as Cold Damage will shift the damage you take, allowing mitigation via elemental resistances. Additionally, it is possible to chill, freeze, or shock yourself this way; it is not possible to self-inflict damaging ailments unless you have a source of All Damage from Hits can Ignite/Poison you such as Mokou's EmbraceMokou's Embrace Ruby RingRequires Level 16+(20-30)% to Fire Resistance+(25-40)% to Cold Resistance (25-40)% increased Attack Speed while Ignited (25-40)% increased Cast Speed while Ignited +25% chance to be Ignited All Damage Taken from Hits can Ignite youFire makes the perfect blossom in the endless night..
Recoup is a valuable stat to have due to the escalating damage quickly exceeding and overpowering other forms of recovery, whereas Recoup will always recover the same percentage of damage received.
Gem level progression
Level
Damage Effectiveness
Attack Damage
Physical Damage Taken per Trauma
More Damage per Trauma
Added Attack Physical Damage
Exp.
Total Exp.
1
28
67
200%
200%
6
2%
11 to 17
0
0
2
31
73
203%
202.6%
8
2%
14 to 21
199345
199345
3
34
79
205%
205.3%
10
2%
18 to 26
285815
485160
4
37
85
208%
207.9%
12
2%
22 to 33
401344
886504
5
40
92
211%
210.5%
15
2%
27 to 40
554379
1440883
6
42
96
213%
213.2%
17
2%
30 to 45
477437
1918320
7
44
100
216%
215.8%
20
2%
34 to 52
583786
2502106
8
46
104
218%
218.4%
31
3%
39 to 58
710359
3212465
9
48
109
221%
221.1%
36
3%
44 to 66
1355511
4567976
10
50
113
224%
223.7%
41
3%
50 to 75
1138877
5706853
11
52
117
226%
226.3%
47
3%
56 to 84
1368233
7075086
12
54
121
229%
228.9%
54
3%
63 to 95
1638338
8713424
13
56
125
232%
231.6%
62
3%
71 to 107
1956648
10670072
14
58
130
234%
234.2%
70
3%
80 to 120
3655184
14325256
15
60
134
237%
236.8%
80
3%
90 to 135
3017327
17342583
16
62
138
239%
239.5%
92
3%
101 to 152
7759995
25102578
17
64
142
242%
242.1%
105
3%
113 to 170
15138193
40240771
18
66
146
245%
244.7%
120
3%
127 to 190
26083825
66324596
19
68
151
247%
247.4%
136
3%
142 to 213
62620247
128944843
20
70
155
250%
250%
194
4%
158 to 238
211708088
340652931
21
72
159
253%
252.6%
221
4%
177 to 265
N/A
N/A
22
74
N/A
255%
255.3%
251
4%
197 to 295
N/A
N/A
23
76
N/A
258%
257.9%
286
4%
219 to 329
N/A
N/A
24
78
N/A
261%
260.5%
324
4%
244 to 366
N/A
N/A
25
80
N/A
263%
263.2%
368
4%
271 to 407
N/A
N/A
26
82
N/A
266%
265.8%
418
4%
301 to 452
N/A
N/A
27
84
N/A
268%
268.4%
474
4%
334 to 501
N/A
N/A
28
86
N/A
271%
271.1%
538
4%
370 to 555
N/A
N/A
29
88
N/A
274%
273.7%
610
4%
410 to 615
N/A
N/A
30
90
N/A
276%
276.3%
691
4%
453 to 680
N/A
N/A
31
91
N/A
278%
277.6%
735
4%
477 to 715
N/A
N/A
32
92
N/A
279%
278.9%
783
4%
501 to 751
N/A
N/A
33
93
N/A
280%
280.3%
833
4%
526 to 789
N/A
N/A
34
94
N/A
282%
281.6%
886
4%
553 to 829
N/A
N/A
35
95
N/A
283%
282.9%
942
4%
581 to 871
N/A
N/A
36
96
N/A
284%
284.2%
1203
5%
610 to 914
N/A
N/A
37
97
N/A
286%
285.5%
1280
5%
640 to 960
N/A
N/A
38
98
N/A
287%
286.8%
1361
5%
671 to 1007
N/A
N/A
39
99
N/A
288%
288.2%
1447
5%
704 to 1057
N/A
N/A
40
100
N/A
289%
289.5%
1539
5%
739 to 1108
N/A
N/A
Gem quality
Type
Additional Effects per 1-20% Quality
Weight
Superior
+(0.05-1)% more Damage per Trauma
1
The Divergent quality has breakpoints and instead provides 1% increased attack speed per Trauma per 20% quality. The damage taken from Trauma continues to scale per 1% quality.
Item acquisition
Boneshatter can drop anywhere.
Recipes
Boneshatter can be created from the following recipes:
Amount
Part
Description
Meta
6
The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox." - Ezomyte Proverb
Random level 20 gem
A
3
Gemcutter's PromiseGemcutter's Promise3Gem Quality:+20%"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
Random gem with 20% quality
A
1
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Random gem with 1–20% quality
A
1
The VoidThe Void1Reach into the Void and claim your prize.
Random divination card set exchange
A
Vendor reward
This item can be bought at the listed NPC vendors, after completing the following quests:
Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.
Trauma stacks. Stunning an enemy with the strike releases a damaging area of effect pulse.
BoneshatterBoneshatterAttack, Melee, Strike, AoE, Duration, Physical
cannot be supported by 
Trauma SupportTrauma SupportPhysical, Support, Melee, Attack, Strike, Duration
. Skills that gain bonuses based on your Trauma stacks do not care about the source of that trauma; for example, if you use 
Multistrike SupportMultistrike SupportAttack, Melee, Support
will also not grant additional Trauma stacks and only inflicts self-damage every 3rd hit. This can be used to reduce the gain and impact of Trauma for builds incapable of tanking high stacks of Trauma.
Mantra of FlamesMantra of Flames
Jewel therefore grants a damage bonus for each stack of Trauma. Linking Boneshatter or a Trauma skill with 
Increased Duration SupportIncreased Duration SupportSupport, Duration
/
Efficacy SupportEfficacy SupportSupport, Duration
, cursing yourself/being cursed with 
Temporal ChainsTemporal ChainsSpell, AoE, Duration, Curse, Hex
, or gaining skill effect duration elsewhere will increase the duration of each Trauma buff stack, reducing the need for high attack speed to maintain high Trauma.
Boneshatter of Complex TraumaBoneshatter of Complex TraumaAttack, Melee, Strike, AoE, Duration, Physical
)146(
VengeanceVengeanceTrigger, Attack, AoE, Physical, Melee
will trigger, 
Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
will trigger, etc. It also allows your armour and/or physical damage reduction to prevent some of the physical damage taken. However, the damage cannot be blocked or evaded via evasion rating/dodge. "Avoid damage from hits" effects (e.g. 
Elusive) do work, however.
Mokou's EmbraceMokou's Embrace
.
The Fox
The Fox
6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
Gemcutter's Promise
3Gem
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
The Void
1Reach into the Void and claim your prize.