Resistance penetration

Elemental Penetration is a form of Resistance reduction. Penetration is applied as damage is dealt, after other resistance calculations. This means that Penetration will reduce a target's resistance even if the target's raw resistance value is far above its maximum resistance cap. Both reduction (as from curses), and penetration (as from Penetration gems), can reduce a target's resistance below 0%. There is no minimum resistance floor. Penetration only affects Hits, which notably excludes Damage over time effects.

Sources

• , ,
• 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.

Examples

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.