How does Dying Breath curse effect work?

The mod in question:

"

Nearby Enemies have 18% increased Effect of Curses on them

Damage taken modifiers apply after all other calculations and as a multiplicative modifier to an attacker's damage dealt. Is this modification similar in that it applies a modifier to an enemy's curse effectiveness received of some kind? How does this calculate with a player's curse effectiveness?

If I have a Vulnerability curse that increases physical damage taken by 30%, and I use that on a monster, it would be 30%. If I have +10% curse effect, it becomes 33%. Would the modifier on Dying Breath be an additive modifier with my +10% curse effect to +28% or act multiplicative on that 33%?

If it's additive, how does the game handle this? Does the curse itself on the enemy store a variable that keeps track of the each individual curse's source effectiveness and add it onto that dynamically as they receive this "curse effectiveness" aura for purposes of this calculation? Is this modifier additive with a monster's "Curse effect received" stat that some monsters have a modifier on (act bosses, rogue exiles, etc) and is that mod additive with a player's curse effect stat?

Per the change in patch 2.4.0:

"

Bosses that had a reduced effect of curses on them now have a multiplier rather than a reduction. Over time, more and more curse effect has been made available to players. With the boss curse effect reduction being additive, the increased curse effect available to players overwhelmed it.

How does this change effect Dying Breath's performance in terms of this mod?

I expect it be a monster side modifier, so effectively a standalone multiplier. The boss curse effect penalty is also a multiplier so there is no problem. the change you are quoting has no interaction with this modifier

So then they are not the same modifier for purposes of calculation? "Boss" entities (and certain other unique monster types) have this as a stat:

"

unique_boss_curse_effect_on_self_+%_final [-Value]

But they have a separate stat that is modified by the Dying Breath aura? It SEEMS like the Dying Breath aura is additive with your curse effect stat, which would imply it is a debuff that increases the value of curse effect stored on each curse on the entity by 18% (additively)? However, I do not know if these curses/buffs store anything like this besides their final value, and if not, I'm not really sure how it could work this way.

Otherwise it is some other stat it modifies on the entity that applies before that modification above multiplicatively. :| Some kind of "curse effect received" and then that one above is "final" to ensure it applies after everything else.

"

Vipermagi wrote:

"

Ludvator wrote:

I expect it be a monster side modifier, so effectively a standalone multiplier.

Nope. Same modifier. Your Curse is applied to the enemy with +x% Increased Effect, and they have their own modifier of +18% Increased Effect.

Bosses have 60% Less Effect, which is of course multiplicative.

So then the curse's internal value of increased curse effect is added onto the monster's own modifier (which is increased by Dying Breath)? Then followed by the boss less modifier.