Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.
Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.

When active, aura increases damage, attack speed and attack rating for you and your party.
Fanaticism is the Paladin's level 30 Offensive Aura; it requires Concentration and opens nothing. While it is the active aura, the caster and every ally in its radius attack faster, with more attack rating and more damage, and the caster's damage bonus is twice the party's. Three numbers decide it: +35% attack speed, +135% attack rating and +373% damage for the caster at level 20.
| Level | Radius | Attack Speed: + | Party Damage: + | Your Damage: + | Attack Rating: + |
|---|---|---|---|---|---|
| 1 | 7.33 yards | 14% | 25% | 50% | 40% |
| 2 | 8 yards | 18% | 33% | 67% | 45% |
| 3 | 8.67 yards | 20% | 42% | 84% | 50% |
| 4 | 9.33 yards | 23% | 50% | 101% | 55% |
| 5 | 10 yards | 25% | 59% | 118% | 60% |
| 6 | 10.67 yards | 26% | 67% | 135% | 65% |
| 7 | 11.33 yards | 27% | 76% | 152% | 70% |
| 8 | 12 yards | 28% | 84% | 169% | 75% |
| 9 | 12.67 yards | 29% | 93% | 186% | 80% |
| 10 | 13.33 yards | 30% | 101% | 203% | 85% |
| 11 | 14 yards | 31% | 110% | 220% | 90% |
| 12 | 14.67 yards | 31% | 118% | 237% | 95% |
| 13 | 15.33 yards | 32% | 127% | 254% | 100% |
| 14 | 16 yards | 33% | 135% | 271% | 105% |
| 15 | 16.67 yards | 33% | 144% | 288% | 110% |
| 16 | 17.33 yards | 34% | 152% | 305% | 115% |
| 17 | 18 yards | 34% | 161% | 322% | 120% |
| 18 | 18.67 yards | 34% | 169% | 339% | 125% |
| 19 | 19.33 yards | 34% | 178% | 356% | 130% |
| 20 | 20 yards | 35% | 186% | 373% | 135% |
| 21 | 20.67 yards | 35% | 195% | 390% | 140% |
| 22 | 21.33 yards | 35% | 203% | 407% | 145% |
| 23 | 22 yards | 36% | 212% | 424% | 150% |
| 24 | 22.67 yards | 36% | 220% | 441% | 155% |
| 25 | 23.33 yards | 36% | 229% | 458% | 160% |
| 26 | 24 yards | 36% | 237% | 475% | 165% |
| 27 | 24.67 yards | 37% | 246% | 492% | 170% |
| 28 | 25.33 yards | 37% | 254% | 509% | 175% |
| 29 | 26 yards | 37% | 263% | 526% | 180% |
| 30 | 26.67 yards | 37% | 271% | 543% | 185% |
The attack speed is the table's dm34, a diminishing curve between Param3 10 ("Attack Speed % Min") and Param4 40 ("Attack Speed % Max"): +14% at level 1, +25% at 5, +30% at 10, +35% at 20 and +37% at 30. The Basin writes the curve out:
attack speed % = min(10 + [30 × [110 × lvl ÷ (lvl + 6)] ÷ 100], 40)
The caster's damage is Param5 50 as the baseline and Param6 +17 a level (ln56): +373% at level 20, +543% at 30. The party's bonus is the same line halved (ln56/2): +186% at level 20. The attack rating is ToHit 40 plus LevToHit 5 a level: +135% at level 20, +185% at 30. The radius is Param1 11 at level 1 plus Param2 1 a level, times two thirds for yards: 7 1/3 yards at level 1, 20 at 20. An aura costs no mana. Every line reads lvl, so +skills from gear and the level of an Aura When Equipped item count.
Fanaticism is an aura: the row's fanaticism state on the caster and the same state on every ally in range, refreshed on the aura's period (perdelay 50 frames, every two seconds). It has no target, no hit check and no damage of its own. Its stats are the table's attackrate (the attack speed), item_tohit_percent (the +% attack rating, the same stat as Bonus to Attack Rating on items) and damagepercent, given to allies at half rate as an aura stat and to the caster in full as a passive stat.
The damage is the same damagepercent pool as Might, off-weapon Enhanced Damage and Strength: all of it is added together and applied once to the weapon's damage (Dealing Physical Damage), so it raises physical weapon damage, not spell damage. The attack speed is the same stat as Increased Attack Speed on items; see Attack Speed for how the sum turns into frames. The attack rating is a percentage, applied with the other +% attack rating sources (Attack Rating, Chance to Hit).
The Basin's page says an Aura Enchanted unique monster, and a mercenary wearing Faith or Hustle, gets the allied half of the damage bonus, not the caster's full bonus.
The Basin lists the other suppliers: an Aura Enchanted unique carries a Fanaticism of level max(mlvl ÷ 8, 1), and Lord De Seis always has it.
No synergies: Fanaticism has no dsc3 lines and no …SymPerCalc column. Fanaticism in turn feeds Sacrifice: +5% damage a hard point, read as blvl, so only hard points count there. All of Fanaticism's own lines read lvl, so a +skill from gear raises the aura exactly as a hard point does.
Fanaticism is a party aura and never touches a player directly; it raises its wearers' hits, and a player's hit on another player is cut to 17% of its value (difficultylevels.txt PlayerDamagePercentVSPlayer) before anything else, see Player versus Player. The Basin's page adds nothing else 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