Stats Guide - DMG Reduction

The Damage Reduction stat (or "dmg reduction", "rdmg / dmg red") is a substitute stat to the defense rate.

There are several types of DMG Reduction you can meet:

• DMG Reduction. (This one applies to every kind of enemies)
• DMG Reduction: Basic. (Also applies to strong enemies with Super Armor, but not midi-bosses nor bosses)
• DMG Reduction: Boss/Named.
• DMG Reduction: Down. (More widely, it applies to every enemy that is "incapacitated")
• DMG Reduction: Partial DMG. (Applies to missed hits from enemies)
• DMG Reduction: Specific enemies:
  • DMG Reduction: Mannequins.
  • DMG Reduction: Soul Junks.
  • DMG Reduction: Rapid Flame.
  • DMG Reduction: Iron Force.
  • DMG Reduction: NED Company.
  • DMG Reduction: Near Soulworkers.
  • DMG Reduction: Golden Menace. (Applies to enemies in Golden Citadel raid)
  • DMG Reduction: Primal Powers. (Applies to enemies in The Primal raid)
  • DMG Reduction: PvP.

The DMG Reduction will apply in cascade, as a reversed multiplier. If the player has several damages reducers, they will all be multiplied with the received damage. Let's take an example:

• The player fights against a level 60 boss and has 5000 as defense value. Therefore, he has 62.5% of reduced damage from his defense rate.
• The player also has 50% of DMG Reduction, and 25% of DMG Reduction: Boss/Named.

Let's say the player received 1,000,000 damage from this enemy, and  that these damage are not reduced in the first place. When the boss hits the player and deal his damage, counting the player's defense rate and DMG Reduction values, the output damage are calculated as follow: 1,000,000 * (1 - 62.5/100) * (1 - 50/100) * (1 - 25/100), so 1,000,000 * 0.375 * 0.5 * 0.75.
The player received 140,625 damage instead of 1,000,000.

DMG Reduction calculation formula here

Not any DMG Reduction modifier can stack directly. For example, having 40% rdmg and 20% rdmg boss won't result in a 60% rdmg against bosses, but will be more like 52%. It can be calculated through this formula:

1 - (damage_received * (1-rdmg) * (1-rdmg_boss)) / damage_received

Note

Effective HP and DMG Reduction relation

Effective HP & DMG Reduction relation formula here

Example: using the same example than for the Effective HP, so with 15,000 HP + 30% defense rate and also 30% DMG reduction, you end up with ~166,667 EHP and with ~555,556 EHP if you add another 30% DMG Reduction modifier of another type to your resistances.

Native Damage Dealt

It is also possible to find the native damage you should have received if you didn't have any resistance at all. To do that, simply divide the reduced damage you received by all damage reducers to find the value.

Native DMG Dealt calculation formula here