Pierce
Pierce is a behavior of projectiles that enables them to pass through targets, continuing along their original trajectory.
Pierce chance
Pierce chance is rolled independently for every hit. If a projectile fails to pierce, one of the other effects – chain, fork or return – may apply. Pierce chance cannot exceed 100%.
Arrow Pierce Chance
All projectiles have an Arrow Pierce Chance stat, regardless of whether the projectile is actually an arrow. A projectile's Arrow Pierce Chance is equal to the sum of all x% chance of Projectiles Piercing modifiers and x% chance of Arrows Piercing modifiers. Arrow Pierce Chance cannot exceed 100%. The Arrows always Pierce modifier found on 
InfractemInfractem
Decimation BowBow
Physical Damage: (117.3-142.2) to (258.4-289.8)
Critical Strike Chance: (6.50-7.50)%
Attacks per Second: 1.20Requires Level 53, 170 Dex(30-50)% increased Critical Strike Chance+(20-30) to Dexterity
(70-80)% increased Physical Damage
Adds (25-35) to (36-45) Physical Damage
10% increased Movement Speed
+(350-400) to Accuracy Rating
Cannot Leech Life
Arrows Pierce all TargetsMark us with mercy, then press on with care,
Execute us steadily, notch away at our despair.
provides 100% Arrow Pierce Chance. Projectiles that inherently always pierce—such as those of Module Error: Too many skills found with q_where = skill.active_skill_name="Freezing Pulse". Please choose only one of the following ids:
MonsterFreezingPulseWhirlwind - Deals (4-736) to (6-1105) Cold Damage, Projectiles Pierce all Targets (page)
WbFreezingPulse - Deals (5-639) to (8-958) Cold Damage, Projectiles Pierce all Targets, (0-60)% increased Cast Speed, (10-40)% increased Projectile Speed (page)—have 100% Arrow Pierce Chance.[1]
Sources
Sources of pierce chance include:
Greatwolf TalismanGreatwolf TalismanTalisman Tier: 4<Two random talisman implicit modifiers>CorruptedThe wolf greeted the king,
In the light of the harvest moon.
The wolf offered the strength of the wild,
And the king paid for it in blood.
, including the unique 
Eyes of the GreatwolfEyes of the Greatwolf
Greatwolf TalismanTalisman Tier: 4
Requires Level 52<Two random talisman implicit modifiers>Implicit Modifier magnitudes are doubledCorruptedI am but a vessel for a greater force.
It acts through me. Speaks through me.
Decides what lives and dies through me.
And will change the world through me.
Horned TalismanHorned TalismanTalisman Tier: 2Projectiles Pierce 2 additional TargetsCorruptedThe Empire hides lies and falsehoods
Behind a mask of politeness and civility.
The First Ones teach us to look through the lies,
And that no beast can truly cover their tracks.
- The Wolven King
Lioneye's VisionLioneye's Vision
Crusader PlateArmour: (1803-2418)
Movement Speed: -5%Requires Level 59, 160 Str, 160 DexSocketed Gems are Supported by Level 15 Pierce
(200-250)% increased Armour
+(60-100) to maximum Life
0.4% of Physical Attack Damage Leeched as Mana
+160 Dexterity Requirement
Enemy Projectiles Pierce you"The Virtue Gems are a gift from the land,
our land, and we will not let our gifts
be destroyed by savages."
- Marceus Lioneye
VoidwalkerVoidwalker
Murder BootsEvasion: (444-596)
Energy Shield: (43-58)Requires Level 69, 82 Dex, 42 Int+(30-50) to Dexterity
(140-180)% increased Evasion and Energy Shield
30% increased Movement Speed
20% chance to Avoid Projectiles while Phasing
You have Phasing if you've Killed Recently
Projectiles Pierce 5 additional Targets while you have Phasing
Celestial FootprintsStep into the void
and experience true freedom.
Penetrating Arrow QuiverPenetrating Arrow QuiverRequires Level 25Arrows Pierce an additional Target
, including the unique 
DrillneckDrillneck
Penetrating Arrow QuiverRequires Level 36Arrows Pierce an additional Target(8-12)% increased Attack Speed
+350 to Evasion Rating
+(40-50) to maximum Life
(10-14) to (19-24) Added Physical Damage with Bow Attacks
Arrows deal 50% increased Damage with Hits and Ailments to Targets they Pierce"Why waste such a fine arrow on just one man?"
- Kiravi, Vaal Archer
- Module Error: No skills found with q_where = skill.active_skill_name="Pierce"
Poacher's AimPoacher's Aim
Viridian JewelLimited to: 1Projectiles Pierce an additional Target
10% increased Projectile DamageA sharp eye can be more deadly than a sharp blade.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.
- Module Error: No skills found with q_where = skill.active_skill_name="Projectile Weakness"
- Passive skills
- Possible implicit from corrupting a bow or wand using a
Vaal OrbVaal OrbStack Size: 20Corrupts an item, modifying it unpredictablyRight click this item then left click an item to corrupt it. Corrupted items cannot be modified again.
.
Additionally, some sources always pierce, including:
- Module Error: No skills found with q_where = skill.active_skill_name="Flame Totem"
- InfractemInfractem
Decimation BowBow
Physical Damage: (117.3-142.2) to (258.4-289.8)
Critical Strike Chance: (6.50-7.50)%
Attacks per Second: 1.20Requires Level 53, 170 Dex(30-50)% increased Critical Strike Chance+(20-30) to Dexterity
(70-80)% increased Physical Damage
Adds (25-35) to (36-45) Physical Damage
10% increased Movement Speed
+(350-400) to Accuracy Rating
Cannot Leech Life
Arrows Pierce all TargetsMark us with mercy, then press on with care,
Execute us steadily, notch away at our despair. - Module Error: No skills found with q_where = skill.active_skill_name="Shrapnel Shot"
- Module Error: Too many skills found with q_where = skill.active_skill_name="Siege Ballista". Please choose only one of the following ids:
TalismanT1SiegeBallista - +4 to maximum number of Summoned Totems, Projectiles Pierce all Targets, Totem lasts 8 seconds, Summons a Totem which uses this Skill, 33% less Attack Speed (page)
SiegeBallistaRoyale - Arrows Pierce (6-7) additional Targets, +1 to maximum number of Summoned Totems, Totem lasts 8 seconds, Summons a Ballista Totem which uses this Skill (page) - Module Error: Too many skills found with q_where = skill.active_skill_name="Spectral Throw". Please choose only one of the following ids:
ThrownWeaponRoyale - N/A (page)
ThrownWeapon - N/A (page) - Module Error: Too many skills found with q_where = skill.active_skill_name="Tornado Shot". Please choose only one of the following ids:
BeyondDemonTornadoShot - Deals (-10-30)% less Damage, Fires (0-2) additional Projectiles, Fires +3 secondary Projectiles (page)
WbTornadoShot - Deals (20-60)% less Damage, Fires (0-4) additional Projectiles, Fires +3 secondary Projectiles (page) (initial arrow) - Module Error: Too many skills found with q_where = skill.active_skill_name="Freezing Pulse". Please choose only one of the following ids:
MonsterFreezingPulseWhirlwind - Deals (4-736) to (6-1105) Cold Damage, Projectiles Pierce all Targets (page)
WbFreezingPulse - Deals (5-639) to (8-958) Cold Damage, Projectiles Pierce all Targets, (0-60)% increased Cast Speed, (10-40)% increased Projectile Speed (page) - Module Error: Too many skills found with q_where = skill.active_skill_name="Frostbolt". Please choose only one of the following ids:
GhostWarcasterElementalFrostbolt - Deals (10-1066) to (15-1604) Cold Damage, Projectiles Pierce all Targets (page)
TotemMapBossFrostBoltTotems - Deals (10-1440) to (15-2160) Cold Damage, Projectiles Pierce all Targets, Totem lasts 8 seconds, 33% less Cast Speed, Summons a Totem which uses this Skill, (30-0)% increased Projectile Speed (page) - Module Error: Too many skills found with q_where = skill.active_skill_name="Ice Spear". Please choose only one of the following ids:
MountainGoatmanIceSpear - Deals (134-595) to (201-893) Cold Damage (page)
IceSpearRoyale - Deals (14-124) to (21-186) Cold Damage, Fires +2 Projectiles, Second form has 400% increased Critical Strike Chance, Second form has +(30-39)% to Critical Strike Multiplier, Second form has 150% more Projectile Speed (page) (first form) 
Incinerate
References
- ↑ Mark_GGG (November 22, 2015). "Deadeye Keystone Nodes should be more generic". Official Path of Exile Forums. Retrieved March 7, 2017.