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### Index: Auto Attack and Skill Formulae

Posted: Mon Apr 27, 2015 4:51 pm
This guide would not have been possible without the help of the Celtic Heroes community.
Special thanks to the following contributors: Bobthemage, Bellatrix, Regenleif, kashi, Immortalius, Badmofo, Bobert, Armo, demannen2, Bitey, Vultum, chaz

Auto Attack and Skill Calculator
A calculator made by Bitey that uses these formulas below. Enter your stat and ability values, and the calculator returns the results.

Auto Attack Formula
First posted by Papi, this formula outputs your auto attack damage. Note that attack does not directly affect this. I have slightly adjusted Papi's formula for better precision.

Strength — on your stats page. Includes equipment bonuses.
Weapon Ability — one of the following: staff, totem, wand, bow, dagger, sword, axe, blunt, spear, novelty, and hand to hand.
Physical Damage — the sum of slash, pierce, and crush damage granted by your equipment.
Elemental Damage — the sum of heat, cold, magic, poison, and divine damage granted by your equipment.

Auto Attack Damage = [0.15818*sqrt(Strength) + 0.061069*sqrt(Weapon Ability) + 0.96523] * Physical Damage + Elemental Damage

Level 50 Skill Formulas
These formulas predict the displayed maximum power of skills as shown in your skill page. They should be at least 99% accurate. Note that these formulas are for max level skills only (skills with 50 points in them). Even if you don't have maxed out skills, they are still extremely useful for comparing the relative strengths of different skills.

Energy costs of max level skills are listed on the left.

Druid
485
Level 50 Abundance Health Boost = 19.592*sqrt(Focus) + 6.1866*sqrt(Nature Magic) + 411.94
264
Level 50 Energy Harvest Energy Stolen = 16.908*sqrt(Focus) + 4.7469*sqrt(Nature Magic) + 132.4
387
Level 50 Howling Wind Attack Reduction = 38.207*sqrt(Focus) + 10.886*sqrt(Nature Magic) + 693.63
328
Level 50 Lightning Strike Damage = 73.547*sqrt(Focus) + 20.743*sqrt(Nature Magic) + 327.29
967
Level 50 Nature's Breath Heal = 14.491*sqrt(Focus) + 4.5689*sqrt(Nature Magic) + 244
437
Level 50 Nature's Touch Heal = 28.89*sqrt(Focus) + 8.9361*sqrt(Nature Magic) + 452.42
485
Level 50 Sanctuary Damage Absorbed = 5.5015*sqrt(Focus) + 2.6713*sqrt(Nature Magic) + 520.82
695
Level 50 Shield of Bark Armor Boost = 12.287*sqrt(Focus) + 3.7807*sqrt(Nature Magic) + 195.08
544
Level 50 Strangling Vines Tick Damage = 49.811*sqrt(Focus) + 15.81*sqrt(Nature Magic) + 265.82
485
Level 50 Ward Resistance Boost = 12.214*sqrt(Focus) + 3.8608*sqrt(Nature Magic) + 193.29
All druid wards follow the same formula.

Mage
387
Level 50 Fire Attunement Damage Boost = 22.331*sqrt(Focus) + 10.044*sqrt(Fire Magic) + 307.16
273
Level 50 Fire Bolt Damage = 72.853*sqrt(Focus) + 21.611*sqrt(Fire Magic) + 264.84 + Fire Attunement Damage Boost
688
Level 50 Firestorm Damage = 90.164*sqrt(Focus) + 25.515*sqrt(Fire Magic) + 365.43 + Fire Attunement Damage Boost
544
Level 50 Frostbite Initial Damage = 31.766*sqrt(Focus) + 14.633*sqrt(Ice Magic) + 183.29
Level 50 Frostbite Tick Damage = 15.438*sqrt(Focus) + 6.5069*sqrt(Ice Magic) + 139.09
387
Level 50 Ice Attunement Damage Boost = 33.548*sqrt(Focus) + 15.221*sqrt(Ice Magic) + 450.48
757
Level 50 Ice Blast Damage = 117.97*sqrt(Focus) + 32.835*sqrt(Ice Magic) + 487.25 + Ice Attunement Damage Boost
544
Level 50 Ice Shards Damage = 96.322*sqrt(Focus) + 30.47*sqrt(Ice Magic) + 702.43 + Ice Attunement Damage Boost
544
Level 50 Incinerate Tick Damage = 27.879*sqrt(Focus) + 12.521*sqrt(Fire Magic) + 227.05
273
Level 50 Lure Resistance Reduction = 17.516*sqrt(Focus) + 5.1609*sqrt(Ability) + 219.08
All mage lures follow the same formula. Assassins/Fire/Soldiers depend on fire magic while Giants/Ice/Magic depend on ice magic.

Ranger
166
Level 50 Light Heal Heal = 28.916*sqrt(Dexterity) + 7.9938*sqrt(First Aid) + 158.14
228
Level 50 Longshot Damage = 81.594*sqrt(Dexterity) + 21.767*sqrt(Ranged Combat) + 459.38 + Auto Attack Damage
264
Level 50 Sharpen Weapons Damage Boost = 2.2751*sqrt(Dexterity) + 0.57194*sqrt(Ranged Combat) + 53.973
166
Level 50 Steady Aim Attack Boost = 8.273*sqrt(Dexterity) + 3.8118*sqrt(Ranged Combat) + 133.95
Level 50 Steady Aim Damage Boost = 2.6887*sqrt(Dexterity) + 1.0223*sqrt(Ranged Combat) + 47.196

Rogue
351
Level 50 Assassinate Damage = 162.38*sqrt(Strength) + 72.473*sqrt(Cunning) + 1639.7 + Auto Attack Damage
264
Level 50 Expose Weakness Evasion Reduction = 34.648*sqrt(Dexterity) + 9.7154*sqrt(Cunning) + 356.56
264
Level 50 Fast Reflexes Defense Boost = 33.097*sqrt(Dexterity) + 10.568*sqrt(Cunning) + 208.2
264
Level 50 Life Steal Health Stolen = 32.043*sqrt(Dexterity) + 9.2872*sqrt(Cunning) + 188.01
264
Level 50 Poison Weapon Damage Boost = 2.1081*sqrt(Dexterity) + 0.96074*sqrt(Cunning) + 46.799
132
Level 50 Quick Strike Damage = 72.848*sqrt(Strength) + 20.526*sqrt(Cunning) + 369.37
132
Level 50 Rend Tick Damage = 16.449*sqrt(Strength) + 5.0892*sqrt(Cunning) + 152.46
165
Level 50 Riposte Hitback Damage = 85.576*sqrt(Strength) + 37.999*sqrt(Cunning) + 582.98
198
Level 50 Shadowstrike Damage = 91.069*sqrt(Dexterity) + 25.62*sqrt(Cunning) + 432.54
132
Level 50 Smoke Bomb Defense Reduction = 22.398*sqrt(Dexterity) + 9.9277*sqrt(Cunning) + 141.51
351
Level 50 Sneaky Attack Damage = 121.82*sqrt(Strength) + 54.694*sqrt(Cunning) + 1000.4 + Auto Attack Damage

Warrior
273
Level 50 Defensive Formation Defense Boost = 16.664*sqrt(Vitality) + 5.1654*sqrt(Melee Combat) + 101.07
137
Level 50 Frenzy Attack Boost = 24.109*sqrt(Strength) + 10.698*sqrt(Melee Combat) + 301.75
Level 50 Frenzy Damage Boost = [0.026073*sqrt(Strength) + 0.010691*sqrt(Melee Combat) + 0.23222] * Physical Damage
137
Level 50 Protective Stance Armor Boost = 13.86*sqrt(Vitality) + 3.9263*sqrt(Melee Combat) + 142.46
137
Level 50 Pummel Damage = 76.485*sqrt(Strength) + 21.483*sqrt(Melee Combat) + 515.65
228
Level 50 Shatter Armor Reduction = 9.6315*sqrt(Strength) + 2.9745*sqrt(Melee Combat) + 136.41
228
Level 50 Shield Wall Damage Absorbed = 65.35*sqrt(Vitality) + 20.662*sqrt(Melee Combat) + 726.98