Reverse damage reduction

Reverse damage reduction (no official name) refers to effects that apply a negative amount of damage reduction, causing the affected demon to take more damage. This is not the same as normal damage boosts.

Mechanics

Reverse damage reduction is applied at the end of the damage formula, where it is additive to normal damage reduction. For more details, see Damage Formula.

• Due to this, reverse reduction can directly counteract normal damage reduction.
  • For example: if an enemy has a passive that grants -80% Elec damage taken, and your party has Botis (applies +40% damage taken), then that partially cancels the enemy's passive (-80 + 40). This results in a total of -40% damage taken instead.
• Normal damage boosts (such as Elec Amp) cannot counteract damage reduction in any way.

Due to how the math works out, reverse damage reduction will result in higher damage output than an equivalent % of normal damage boosters.

• For example: Suppose Elohim is in a party with Mithras. The 40% reverse reduction from Mithras's Covenant Bless results in more damage output than Elohim equipping 40% worth of damage boosts (such as Fire Amp (25%) + Fire Boost (15%)).

Skills that apply reverse damage reduction are usually phrased as affecting the damage the enemy takes/receives, rather than the amount of damage the party deals.

Appliers

Skills that apply reverse damage reduction to enemies

Type	Name	MP Cost	Target	Amount	Skill Points	Exclusive?
Passive	Covenant Bless	Passive	All Targets	40% Fire/Light	-	Mithras
Passive	Crawling Chaos	Passive	All Targets	25% Magic	-	Nyarlathotep
Passive	Dark Eclipse Voltage	Passive	All Targets	40% Elec	-	Botis
Passive	Hedonistic Reaper	Passive	All Targets	25% Physical	-	Guedhe
Passive	Lady of the Lake	Passive	All Targets	40% Ice	-	Vivian
Passive	Peerless Beauty	Passive	All Targets	30% All	-	Cleopatra
Passive	Tempestuous Malice	Passive	All Targets	30% All	-	Tiamat A
Passive	The Wings of Darkness	Passive	All Targets	20% All	-	Femto
Passive	War Goddess	Passive	All Targets	20% All	-	Morrighan

Demon Panels that apply reverse damage reduction to enemies

Demon	Panel #	Effect
Cleopatra	Panel 2	While the one with this skill is alive, all enemies will receive the following effect: +15% to damage received while inflicted with Spirit Chains (Corrosion).
Kali A	Panel 2	While the one with this skill is alive, all Cursed enemies will receive the following effect: -50% to Healing skill effectiveness, +15% to damage received.
Masakado B	Panel 2	While the one with this skill is alive, all enemies will receive the following effect: +15% to damage received while inflicted with Spirit Chains of Suppression.
Old Ones	Panel 2	While the one with this skill is alive, all enemies will receive the following effect: +20% to damage received while inflicted with Gloom.

Skills that apply reverse damage reduction to self

Type	Name	MP Cost	Target	Amount	Skill Points	Exclusive?
Passive	Berserker (Skill)	Passive	Self	20% All	18	-
Passive	Holy Immunity	Passive	Self	60% Fire	-	Ainz