Resistance penetration
Resistance penetration is a property of hits that reduces the target's effective resistance to specific damage types.
Mechanics
When a target is struck by a hit with resistance penetration, that target's effective resistance is reduced for determining the amount of damage dealt by the hit. Resistance penetration does not modify the target's resistance or maximum resistance stats.
The target's effective resistance to damage type is given by:
Just like resistance stats, effective resistance can be a negative number. There is no minimum limit on effective resistance imposed by the game mechanics.[1]
Due to the fact that resistance penetration is a property of hits, it cannot apply to damage over time.[2]
Efficacy of resistance penetration on overall damage
The percentage increase to damage type as a result of resistance penetration is given by:
It is a simple exercise then, to prove that 1% penetration produces +1% damage against a monster with 0 resistance, and 1% penetration produces +4% damage against a monster with 75 resistance. Clearly, penetration is more useful against high resistance monsters, and less useful against low resistance monsters.
Consider a player using a skill with Penetrates 50% Fire Resistance dealing 100 fire damage to an enemy:
- If the enemy has +0% Fire resistance
- The enemy's resistance will be treated at 50 lower than it is, which in this case will result in an effective −50% fire resistance. The enemy will take 150 fire damage.
- If the enemy has +25% Fire resistance
- This will result in an effective −25% fire resistance. The enemy will take 125 fire damage.
- The enemy has +150% Fire resistance, but is capped at their maximum fire resistance of 75%
- This will result in an effective 25% fire resistance. The enemy will take 75 fire damage.
- The enemy has +150% Fire resistance, but is capped at their maximum fire resistance of 75%. The enemy is cursed with Flammability before being attacked, which causes them to lose 30% Fire Resistance.
- The enemy first loses 30% resistance, bringing them down to +120% fire resistance. They are still well above their maximum, and their resistance value remains at 75%. The 50% penetration then results in an effective 25% fire resistance. The enemy will take 75 fire damage.
- The enemy has +10% Fire resistance. The enemy is cursed with Flammability before being attacked, which causes them to lose 30% Fire Resistance.
- The enemy first loses 30% resistance, bringing them down to −20% fire resistance. The 50% penetration then results in an effective −70% fire resistance. The enemy will take 170 fire damage.
Sources of resistance penetration
Currently, resistance penetration exists only for elemental damage types.
Support gems
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}}
Items
Base types
- Horned SceptreHorned SceptreSceptre
Physical Damage: 27-50
Critical Strike Chance: 6.00%
Attacks per Second: 1.30
Weapon Range: 1.1 metresRequires Level 36, 66 Str, 66 IntDamage Penetrates 4% Elemental Resistances - Stag SceptreStag SceptreSceptre
Physical Damage: 39-72
Critical Strike Chance: 6.00%
Attacks per Second: 1.30
Weapon Range: 1.1 metresRequires Level 55, 98 Str, 98 IntDamage Penetrates 4% Elemental Resistances - Sambar SceptreSambar SceptreSceptre
Physical Damage: 42-78
Critical Strike Chance: 6.00%
Attacks per Second: 1.30
Weapon Range: 1.1 metresRequires Level 70, 121 Str, 113 IntDamage Penetrates 6% Elemental Resistances
Unique items
- The Tempestuous SteelThe Tempestuous Steel
War SwordOne Handed Sword
Physical Damage: (21-24) to (45-50)
Critical Strike Chance: 5.00%
Attacks per Second: (1.51-1.60)
Weapon Range: 1.1 metresRequires Level 20, 41 Str, 35 Dex40% increased Global Accuracy RatingAdds (5-8) to (15-20) Physical Damage
(8-14)% increased Attack Speed
Hits can't be Evaded
Attacks with this Weapon Penetrate 30% Elemental Resistances
Gain 15% of Physical Attack Damage as Extra Fire Damage
Gain 15% of Physical Attack Damage as Extra Lightning DamageThe blade thrums with wild energy
Eager for vengeance against all who walk free. - Agnerod EastAgnerod East
Imperial StaffStaff
Physical Damage: 57-171
Critical Strike Chance: 7.00%
Attacks per Second: 1.15
Weapon Range: 1.3 metresRequires Level 66, 158 Str, 113 Int+18% Chance to Block Attack Damage while wielding a Staff40% increased Strength Requirement
+(80-120) to Intelligence
(30-50)% increased Lightning Damage
+2 to Level of all Lightning Spell Skill Gems
Damage Penetrates 20% Lightning Resistance
100% increased Duration of Lightning AilmentsOne for each corner of the great Vinktar Square. - Agnerod NorthAgnerod North
Imperial StaffStaff
Physical Damage: 57-171
Critical Strike Chance: 7.00%
Attacks per Second: 1.15
Weapon Range: 1.3 metresRequires Level 66, 158 Str, 113 Int+18% Chance to Block Attack Damage while wielding a Staff40% increased Strength Requirement
+(80-120) to Intelligence
(30-50)% increased Lightning Damage
+2 to Level of all Lightning Spell Skill Gems
15% chance to Shock
Damage Penetrates 20% Lightning ResistanceOne for each corner of the great Vinktar Square. - Agnerod SouthAgnerod South
Imperial StaffStaff
Physical Damage: 57-171
Critical Strike Chance: 7.00%
Attacks per Second: 1.15
Weapon Range: 1.3 metresRequires Level 66, 158 Str, 113 Int+18% Chance to Block Attack Damage while wielding a Staff40% increased Strength Requirement
+(80-120) to Intelligence
(30-50)% increased Lightning Damage
+2 to Level of all Lightning Spell Skill Gems
+5% to maximum Lightning Resistance
Damage Penetrates 20% Lightning ResistanceOne for each corner of the great Vinktar Square. - Agnerod WestAgnerod West
Imperial StaffStaff
Physical Damage: 57-171
Critical Strike Chance: 7.00%
Attacks per Second: 1.15
Weapon Range: 1.3 metresRequires Level 66, 158 Str, 113 Int+18% Chance to Block Attack Damage while wielding a Staff40% increased Strength Requirement
+(80-120) to Intelligence
(30-50)% increased Lightning Damage
Adds (5-15) to (100-140) Lightning Damage to Spells
+2 to Level of all Lightning Spell Skill Gems
Damage Penetrates 20% Lightning ResistanceOne for each corner of the great Vinktar Square.
Passive skills
The following passive skills affect penetration: Template:Passive table
Template:Ascendancy passive table
References
- ↑ Mark_GGG (December 11, 2012). "Penetration gems mess up balance between ele/physical". Official Path of Exile Forums. Retrieved November 1, 2015.
- ↑ Mark_GGG (November 18, 2013). "Damage over time mechanic change clarification?". Official Path of Exile Forums. Retrieved July 7, 2016.