Diablo IV Damage Scaling Lab

Base Hit

Weapon minLower weapon damage

Weapon maxUpper weapon damage

Skill coefficient %Tooltip or effective hit coefficient

Casts per secondAttack or hit rate

Core Buckets

Main stat0.1% skill damage per point

Other additive +%Any applied +% damage not listed below

Other x multipliers %Combined x% effects not listed below

Enemy reduction %Armor, resistance, DR, or boss penalty

Additive +% Damage

Elemental +%+Fire, +Cold, +Poison, etc.

Skill type +%+Basic, +Core, +Ultimate, etc.

DoT +%For burning, poison, bleed, shadow DoTs

Close +%Set to 0 if the target is not close

Distant +%Set to 0 if the target is not distant

Crowd controlled +%Use average uptime if it is not permanent

Multiplicative x% Damage

Elemental x%%x Fire Damage goes here, not in +%

Skill x%x% to a skill, skill family, or damage type

Aspect / unique x%Legendary aspects and unique item multipliers

Paragon / passive x%Glyph, node, key passive, class mechanic x%

Buff uptime x%Average active x% windows here

Crit & Vulnerable

Crit chance %Expected value weighting

Critical strike damage +%Additive stat, only matters on crits

Vulnerable uptime %Expected value weighting

Vulnerable damage +%Additive stat, weighted by vulnerable uptime

Overpower

Overpower chance %Expected value weighting

Life + FortifyFlat overpower base proxy

Overpower damage %Conditional additive overpower bonus

Expected hit0Weighted by crit, vulnerable, overpower

Expected DPS0Expected hit times cast rate

Normal hit0Before crit, vulnerable, overpower

Best spike0Crit + vulnerable + overpower

Scaling Curve

Next Point Value

Input	Step	DPS gain	Relative

Formula Model

Learning rule: numbers with +% usually add together in the additive bucket. Numbers with x% are independent multipliers. Critical Strike Damage +% and Vulnerable Damage +% are additive stats, while a crit still has a base 1.5x multiplier and vulnerable still has a base 1.2x multiplier.

Reference: Maxroll In-Depth Damage Guide