imported>Naturelover at 20:54, 18 February 2026

2026-02-18T20:54:35Z

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{{Skill page
|Nav=CM
|File=Combat Masteries
|RS=None
|SS=None
|Type=Offensive passive
|Tier=1
|Rlvl=1
|Req=[[Sword]] class weapon
[[Blade (item type)|Blade]] class weapon (D2R only)
|Town=No
|Mana=None
|ANM=No
|WD=No
|LB=No}}
{{U|=Although there are many gifts from the Great and Ancient King Bul-Kathos, the greatest of these is the secret of steel. Raw iron is hardened and made resilient, forged into weapons of honor and power. Most mortal swords are patterned after the blade first wielded by Bul-Kathos himself. Balancing offense with defense, it is the perfect weapon for the defense of Mount Arreat in the coming apocalypse. All Barbarian warriors learn the secrets of steel at an early age, yet few truly master the deadly elegance of the sword. Those few who do often disdain all other weapons.}}

==Detail==
{{Stat}}
|-
!align=left|+[[% Attack Rating]]
|20 + (8*slvl) (LoD) 
32 + (8*slvl) (D2R)
|-
!align=left|+[[% Damage]]
|23 + (5*slvl)
|-
!align=left|% Chance of critical strike
|min( [35 * [ (110*slvl) / (slvl+6) ] / 100] , 35)
|}

*Renamed to '''[[Blade Mastery]]''' in D2R, and works with [[Dagger]]s as well (as a new [[Blade (item type)|Blade]] item type).
*When equipping a [[sword]] (LoD) / [[Blade (item type)|blade]] (D2R) class weapon, enhances attack damage and attack rating with chance of critical strike doubling physical attack damage. Since conversion of physical damage to another damage type occurs after it is applied, it can also double the converted damage of [[Berserk]] (both the skill itself and its synergy bonus to [[Concentrate]] and [[Frenzy]]).
*Overlay normally displayed when successful may be obscured by others (which gave rise to the myth that [[Poison Damage|poison damage]] prevents it from being applied).

[[File:Critical damage.gif|center|frame|Target overlay when critical damage is applied.]]

*Mastery critical strike does not apply when using [[Sacrifice]] [[charges]].
*Mastery critical strike is mutually exclusive with [[Critical Strike]] and [[Deadly Strike]]: if one is successful then the others aren't applied. Combined % chance of double physical attack damage is as follows:

{|cellpadding=0 cellspacing=0
|-valign=top
!width=132 align=left rowspan=2|Two sources
|100 - ( (100-CS) * (100-MCS) / 100)
|-
|100 - ( (100-DS) * (100-MCS) / 100)
|-
!align=left|Three sources
|100 - ( (100-CS) * (100-DS) * (100-MCS) / 10000) [https://www.theamazonbasin.com/forums/index.php?/forums/topic/114336-question-about-critical-strike-on-insight/&do=findComment&comment=1425043]
|}
 

==Source==

===[[Skill bonus]]===
*+(1-3) Sword Mastery ([[Barbarian (Diablo II)|Barbarian]] Only) can spawn on ilvl <25 [[primal helm]]s.

{{Skill bonus}}
|-
| +(2-4)
!align=left|[[Bloodletter|{{U|=Bloodletter Gladius}}]]
|30||No
|}
 

==Levels 1-60 (LoD)==

{{Levels 1-20}}
|-
!align=left| +% Attack Rating
| 28 || 36 || 44 || 52 || 60 || 68 || 76 || 84 || 92 || 100 || 108 || 116 || 124 || 132 || 140 || 148 || 156 || 164 || 172 || 180
|-
!align=left| +% Damage
| 28 || 33 || 38 || 43 || 48 || 53 || 58 || 63 || 68 || 73 || 78 || 83 || 88 || 93 || 98 || 103 || 108 || 113 || 118 || 123
|-
!align=left| % Chance of critical strike
| 5 || 9 || 12 || 15 || 17 || 19 || 20 || 21 || 23 || 23 || 24 || 25 || 26 || 26 || 27 || 28 || 28 || 28 || 29 || 29
|}

{{Levels 21-40}}
|-
!align=left| +% Attack Rating
| 188 || 196 || 204 || 212 || 220 || 228 || 236 || 244 || 252 || 260 || 268 || 276 || 284 || 292 || 300 || 308 || 316 || 324 || 332 || 340
|-
!align=left| +% Damage
| 128 || 133 || 138 || 143 || 148 || 153 || 158 || 163 || 168 || 173 || 178 || 183 || 188 || 193 || 198 || 203 || 208 || 213 || 218 || 223
|-
!align=left| % Chance of critical strike
| 29 || 30 || 30 || 30 || 30 || 31 || 31 || 31 || 31 || 31 || 32 || 32 || 32 || 32 || 32 || 32 || 32 || 33 || 33 || 33
|}

{{Levels 41-60}}
|-
!align=left| +% Attack Rating
| 348 || 356 || 364 || 372 || 380 || 388 || 396 || 404 || 412 || 420 || 428 || 436 || 444 || 452 || 460 || 468 || 476 || 484 || 492 || 500
|-
!align=left| +% Damage
| 228 || 233 || 238 || 243 || 248 || 253 || 258 || 263 || 268 || 273 || 278 || 283 || 288 || 293 || 298 || 303 || 308 || 313 || 318 || 323
|-
!align=left| % Chance of critical strike
| 33 || 33 || 33 || 33 || 33 || 33 || 33 || 33 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 35
|}

 

==Levels 1-60 (D2R)==

{{Levels 1-20}}
|-
!align=left| +% Attack Rating
| 40 || 48 || 56 || 64 || 72 || 80 || 88 || 96 || 104 || 112 || 120 || 128 || 136 || 144 || 152 || 160 || 168 || 176 || 184 || 192
|-
!align=left| +% Damage
| 28 || 33 || 38 || 43 || 48 || 53 || 58 || 63 || 68 || 73 || 78 || 83 || 88 || 93 || 98 || 103 || 108 || 113 || 118 || 123
|-
!align=left| % Chance of critical strike
| 5 || 9 || 12 || 15 || 17 || 19 || 20 || 21 || 23 || 23 || 24 || 25 || 26 || 26 || 27 || 28 || 28 || 28 || 29 || 29
|}

{{Levels 21-40}}
|-
!align=left| +% Attack Rating
| 200 || 208 || 216 || 224 || 232 || 240 || 248 || 256 || 264 || 272 || 280 || 288 || 296 || 304 || 312 || 320 || 328 || 336 || 344 || 352
|-
!align=left| +% Damage
| 128 || 133 || 138 || 143 || 148 || 153 || 158 || 163 || 168 || 173 || 178 || 183 || 188 || 193 || 198 || 203 || 208 || 213 || 218 || 223
|-
!align=left| % Chance of critical strike
| 29 || 30 || 30 || 30 || 30 || 31 || 31 || 31 || 31 || 31 || 32 || 32 || 32 || 32 || 32 || 32 || 32 || 33 || 33 || 33
|}

{{Levels 41-60}}
|-
!align=left| +% Attack Rating
| 360 || 368 || 376 || 384 || 392 || 400 || 408 || 416 || 424 || 432 || 440 || 448 || 456 || 464 || 472 || 480 || 488 || 496 || 504 || 512
|-
!align=left| +% Damage
| 228 || 233 || 238 || 243 || 248 || 253 || 258 || 263 || 268 || 273 || 278 || 283 || 288 || 293 || 298 || 303 || 308 || 313 || 318 || 323
|-
!align=left| % Chance of critical strike
| 33 || 33 || 33 || 33 || 33 || 33 || 33 || 33 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 34 || 35
|}

 

==Reference==
*[http://classic.battle.net/diablo2exp/skills/barbarian-combatmasteries.shtml Combat Masteries] (Arreat Summit)
*[https://www.theamazonbasin.com/forums/index.php?/forums/topic/114336-question-about-critical-strike-on-insight/ Question about "Critical Strike" on Insight] (D2 Technical)

Sword Mastery - Revision history

imported>Naturelover at 20:54, 18 February 2026