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Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.
D2R.ORGUnless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.
Assassin skill · level 1Same against playersPassive - improves your skill with claw class weapons.
Claw Mastery is the first skill of the Assassin's Shadow Disciplines (level 1, no prerequisites; it unlocks Burst of Speed and Weapon Block). It is a passive, costs no mana and never needs casting: while a claw-class weapon is equipped (the row's item type is "h2h") every attack with it gets more attack rating, more damage and a chance of a critical hit. The numbers that decide it are the +10% attack rating a level and the critical chance, which climbs fast and then stalls short of 25%.
Claw Mastery by level, from skills.txt — past 20 from +skills| Level | Attack Rating: + | Damage: + | Critical Strike |
|---|---|---|---|
| 1 | 30% | 35% | 3% |
| 2 | 40% | 39% | 6% |
| 3 | 50% | 43% | 9% |
| 4 | 60% | 47% | 11% |
| 5 | 70% | 51% | 12% |
| 6 | 80% | 55% | 13% |
| 7 | 90% | 59% | 14% |
| 8 | 100% | 63% | 15% |
| 9 | 110% | 67% | 16% |
| 10 | 120% | 71% | 17% |
| 11 | 130% | 75% | 17% |
| 12 | 140% | 79% | 18% |
| 13 | 150% | 83% | 18% |
| 14 | 160% | 87% | 19% |
| 15 | 170% | 91% | 19% |
| 16 | 180% | 95% | 20% |
| 17 | 190% | 99% | 20% |
| 18 | 200% | 103% | 20% |
| 19 | 210% | 107% | 20% |
| 20 | 220% | 111% | 21% |
| 21 | 230% | 115% | 21% |
| 22 | 240% | 119% | 21% |
| 23 | 250% | 123% | 21% |
| 24 | 260% | 127% | 22% |
| 25 | 270% | 131% | 22% |
| 26 | 280% | 135% | 22% |
| 27 | 290% | 139% | 22% |
| 28 | 300% | 143% | 22% |
| 29 | 310% | 147% | 22% |
| 30 | 320% | 151% | 22% |
The three lines are the row's three passive stats. Attack rating is Param1 (30) plus Param2 (10) a level: +220% at level 20, +320% at level 30. Damage is Param3 (35) plus Param4 (4) a level: +111% at level 20, +151% at level 30. The critical chance runs from Param5 (0) toward Param6 (25) on the game's diminishing curve, so it is 3% at level 1, 12% at level 5, 17% at level 10, 19% at 15, 21% at level 20 and 22% at 30; the Basin's table shows it reaching 25% only at level 60. All three read the full level, so +skills count. The skill has no mana line at all, so none is in the table.
The mastery is a passive state ("clawmastery") that applies only to attacks made with a claw; the Basin says the bonuses apply when equipping and attacking with a claw-class weapon. The attack rating bonus goes into the Chance to Hit roll with your other Attack Rating percentages; the damage bonus adds to your Enhanced Damage in the weapon-damage sum, see Dealing Physical Damage.
A critical hit doubles the physical damage of the claw hit. The Basin's page says the mastery's critical is mutually exclusive with Deadly Strike and the Amazon's Critical Strike: each is rolled, but only one can apply to a hit, so the combined chance of a double-damage hit is
combined = 100 − (100 − Deadly Strike) × (100 − mastery critical) ÷ 100
The Basin's page says the mastery's attack rating bonus is not applied to Blade Fury thrown from claws, and that its critical does not apply to Sacrifice charges.
No synergies: no other skill raises Claw Mastery, and its lines read lvl, so +skills from items and the Assassin skill tabs count in full. Claw Mastery's hard points are in turn a synergy to Dragon Claw.
The mastery changes the claw hit, not the target: against a player the same attack rating, damage and critical apply, and the hit is then cut to 17% of its value (difficultylevels.txt PlayerDamagePercentVSPlayer) by the player-versus-player rule, see Player versus Player. The Basin's page says nothing else specific about players.
Written from the game's tables (build 3.3.93847) and the cited pages; a per-level table is computed from skills.txt and skilldesc.txt by the same evaluator the skill pages use. A “legacy rule” is a published engine rule no table proves; a “game table” is read from the table named. · Report incorrect data
Mechanics · Skill mechanics · Assassin