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- 1 Mechanics
- 2 Related skills
- 3 Related items
- 4 Passive skills
- 5 References
The duration of stuns can be altered by increased Block and Stun Recovery, increased Stun Duration on enemies, increased Stun Duration with Two Handed Melee Weapons on enemies and similar modifiers.
Whether or not a stun occurs can be calculated using the following formula:
stun_chance [%] = 200 * damage / defender_effective_max_life
In other words, in single-player a enemy will be stunned a mean of two time throughout its lifetime, assuming no regeneration or "wasted" damage.
Where defender_effective_max_life is what the maximum life of the creature would be in a single-player map. Increases to monster life from a party of more than one player do not affect defender_effective_max_life.
If the chance to stun would be less than or equal to 20%, it is ignored, so you need to deal more than 10% of effective maximum life to have a chance to stun. Dealing at least 50% of maximum life will always stun.
Reduced stun threshold modifiers reduce the value of defender_effective_max_life. For example, 25% reduced Enemy Stun Threshold means the enemy will be treated as if their defender_effective_max_life is only 75% as much as it actually is, increasing the chance that the enemy will be stunned.
When the total Stun Threshold Reduction would be over 75%, it is instead treated as being:
75 + ( Stun Threshold Reduction - 75) * 25 / ( Stun Threshold Reduction -50 )
The net effect on the mean number of stuns during a monster's lifetime is as follows:
- Hyperbolic regime: From 0 to 75% Reduced Stun Threshold, the mean number of stuns per lifetime increases from 2 to 8, accelerating as it goes.
- Linear regime: Every 3.125% Reduced Stun Threshold past 75% increases the mean number of stuns per lifetime by 1.
If a player has a total of 110% reduced Enemy Stun Threshold from gear and skills, the actual value that gets used would be:
There are passive skills and item modifiers that grants a chance to avoid becoming stunned:
- As long as a creature has greater than 0 energy shield, it has a 50% chance to ignore a stun. This is calculated independently of the creature's chance to be stunned. First the chance to stun is calculated as normal, and if the stun check succeeds and would cause a stun, there is then a 50% chance that the stun can be ignored. An attack that removes energy shield can have its stun avoided, even though energy shield is 0 after damage is applied. Players lose this chance to ignore a stun with the Eldritch Battery keystone node.
- The modifier +#% chance to Avoid being Stunned.
- The modifier +#% chance to Avoid interruption from Stuns while Casting.
A character with considerable amount of energy shield is continuously casting a spell. The character has following mods:
When the character then gets hit that normally would cause a stun. However, due to all the avoidance modifiers the actual chance to become stunned is:
(1 - 0.5) * (1 - 0.38) * (1 - 0.25) = 23.25%
- Unwavering Stance
- Eye of ChayulaEye of Chayula
Onyx AmuletRequires Level 20+(10-16) to all Attributes20% reduced maximum Life
30% increased Rarity of Items found
Cannot be StunnedNever blinking, always watching.
- Ezomyte HoldEzomyte Hold
Iron HatArmour: (23 to 33)Requires 9 Str20% increased Physical Damage
+(15-25) to Armour
+(25-50) to maximum Life
Cannot Evade Enemy Attacks
Cannot be StunnedA moment of victory may last an eternity in memory.
- Kaom's RootsKaom's Roots
Titan GreavesArmour: 210Requires Level 68, 120 StrHas no Sockets
Cannot be Knocked Back
+(120-150) to maximum Life
Unwavering StanceDon't flinch. It's a waste of good hitting time.
- Lioneye's PawsLioneye's Paws
Bronzescale BootsArmour: 48
Evasion: 48Requires Level 30, 30 Str, 30 Dex+(40-60) to Strength
+(40-60) to Dexterity
Adds 12 to 24 Fire Damage to Attacks
20% increased Movement Speed
40% reduced Movement Speed when on Low Life
20% increased Stun and Block Recovery
Cannot be Stunned when on Low LifeStand and lead the righteous pride,
Fight till death, never hide. (on low life)
- Spire of StoneSpire of Stone
Crimson JewelLimited to: 1Radius: Large3% increased Totem Life per 10 Strength in Radius
Totems cannot be StunnedThe strongest Karui tribes left the longest impressions on the land.
Their symbols served as guidance many generations
after their creators had been buried deep beneath the earth.Place into an allocated jewel socket on the Passive Skill Tree. Right click to remove from the Socket. (for totems)
Related skillsA list of skill gems that relates to stun.
|Cast when Stunned SupportCast when Stunned SupportSupport, Spell, Trigger|
Can store 1 use(s)
Cooldown Time: 0.25 secDrop Level: 38
Requires Level 38Per 1% Quality:
0.5% increased Damage(50-69)% chance to Cast Supported Spells when you are Stunned, or
Block a Stunning Hit
You cannot Cast Supported Spells directlyThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
|Endurance Charge on Melee Stun SupportEndurance Charge on Melee Stun SupportSupport, Melee, Attack|
Mana Multiplier: 110%Drop Level: 18
Requires Level 18Per 1% Quality:
1% increased Stun Duration on Enemies(0-19)% reduced Enemy Stun Threshold
Gain an Endurance Charge if you Stun an Enemy with Melee DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
|Ground SlamGround SlamAttack, AoE, Melee|
Mana Cost: 6
Cast Time: 1.00 secDrop Level: 1The character slams the ground in front of them with their main hand weapon, creating a wave that travels forward and damages enemies with an increased chance to stun. Only works with Staves or Maces.Per 1% Quality:
1.5% increased Stun Duration on enemiesDeals (90-120.4)% of Base Attack Damage
25% reduced Enemy Stun Threshold
(0-19)% increased Area of Effect radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
|Heavy StrikeHeavy StrikeAttack, Melee|
Mana Cost: 5
Cast Time: 1.00 secDrop Level: 1Attacks the enemy with a forceful blow, knocking them back. Requires a Mace, Axe, Sword or Two-Handed Weapon.Per 1% Quality:
1% increased Stun Duration on enemiesDeals (150-193.7)% of Base Attack Damage
Knocks Enemies Back on Hit
25% reduced Enemy Stun ThresholdPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
|Shield ChargeShield ChargeAttack, AoE, Movement, Melee|
Mana Cost: 8
Cast Time: 1.00 secDrop Level: 10
Requires Level 10Charges at a targeted location or enemy, pushing away enemies in your path and repeatedly dealing damage in a small area in front of you. You deal damage in a larger area when you reach the target. The further you travel, the more damage you deal, and the greater your chance of stunning enemies.Per 1% Quality:
1% increased DamageDeals (100-122.8)% of Base Attack Damage
50% increased Stun Threshold reduction on enemies at Maximum charge distance
75% increased Movement Speed
200% more Damage at Maximum Charge Distance
Deals 50% of Base DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
|Stun SupportStun SupportSupport|
Icon: tDrop Level: 8
Requires Level 8Per 1% Quality:
1.5% increased Stun Duration on Enemies(30-49)% reduced Enemy Stun ThresholdThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
|Vaal Ground SlamVaal Ground SlamVaal, Attack, AoE, Melee|
Souls per use: 24 (N) / 36 (C) / 48 (M)
Can store 3 use(s)
Cast Time: 1.00 secDrop Level: 1The character slams the ground with their main hand weapon, creating a wave that travels in all directions and damages enemies. Only works with Staves or Maces.Per 1% Quality:
1.5% increased Stun Duration on enemiesDeals (160-198)% of Base Attack Damage
100% increased Knockback Distance
20% increased Area of Effect radius
Knocks Enemies Back on Hit
Can't be Evaded
CorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
|Warlord's MarkWarlord's MarkCurse, Spell, AoE, Duration|
Mana Cost: (24 to 50)
Cast Time: 0.50 secDrop Level: 24
Requires Level 24Curses all targets in an area, making them more vulnerable to stuns. Hitting the cursed targets will leech life and mana, and killing them will result in a chance to gain an endurance charge.Per 1% Quality:
Cursed enemies have a 0.5% chance to grant an Endurance Charge when slainBase duration is (6-9.8) seconds
(0-38)% increased Area of Effect radius
Cursed enemies have (21-30)% reduced Stun and Block Recovery
Cursed enemies have an additional 10% chance to be Stunned
Cursed enemies grant 2% Life Leech when Hit
Cursed enemies grant 2% Mana Leech when Hit
Cursed enemies have a (21-30)% chance to grant an Endurance Charge when slainPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
The following items are related to stun.
- Maces grant increased stun duration on enemies as an implicit.
- Blunt Arrow QuiverBlunt Arrow QuiverDrop Level: 16
Requires Level 16(25-35)% increased Stun Duration on Enemies grants increased stun duration on enemies as an implicit.
- Cloth BeltCloth BeltDrop Level: 20
Requires Level 16(15-25)% increased Stun and Block Recovery grants increased stun recovery as an implicit.
- Studded BeltStudded BeltDrop Level: 20
Requires Level 16(20-30)% increased Stun Duration on Enemies grants increased stun duration on enemies as an implicit.
|Spire of Stone |
3% increased Totem Life per 10 Strength in Radius
Totems cannot be Stunned
|Stun Mastery|| |
Increased Stun Threshold
|Warrior's Blood|| |
Chance to avoid being Stunned
|Stun Avoidance and Movement Speed|| |
|Heart of Oak|| |
Chance to avoid interruptions from Stuns while Casting
|Avoid Interruption while Casting|| |
|Practical Application|| |
Reduced Enemy Stun Threshold
|Mace Damage and Reduced Enemy Stun Threshold|| |
|Stun Threshold Reduction|| |
|Heavy Draw|| |
|Skull Cracking|| |
|Stun Mastery|| |
||Two Handed Damage, Reduced Enemy Stun Threshold|| |
Stun Duration on Enemies
|Stun Duration|| |
|Bone Breaker|| |
|Heavy Draw|| |
|Martial Experience|| |
|Stun Mastery|| |
||Armour, Stun Duration|| |
|Unwavering Stance|| |
||Bastion of Hope|| |
||Brutal Fervour|| |
||Rite of Ruin|| |
||Vile Bastion|| |
Enemy you've Killed Recently
These passive skills are related to stun, but do not fit in any other category:
- Mark_GGG (July 14, 2014). "Possible to stun yourself on reflect with vulnerability?". Official Path of Exile Forums. Retrieved November 26, 2014.
- Malice (November 13, 2011). "Mechanics Thread". Path of Exile Forum. Retrieved October 20, 2013.
- Mark_GGG (October 25, 2012). "Stun and Reduced Stun Threshold: the quick and dirty way". Path of Exile Forum. Retrieved October 20, 2013.
- Mark_GGG (August 21, 2013 5:23 AM). "Vulnerability's additional chance to stun not applying". Path of Exile Forum. Retrieved August 21, 2013.
- Rory (April 18, 2015). "A potential change I'm keen to hear your thoughts on". Path of Exile Forum. Retrieved March 14, 2016.
- Mark_GGG (July 16, 2013). "Energy Shield's Chance to Ignore Stun is not additive with Chance to Avoid Stun". Path of Exile forum. Retrieved February 03, 2016.
- milesmeloro (July 17, 2013). "Energy Shield's Chance to Ignore Stun is not additive with Chance to Avoid Stun". Path of Exile subforum. Retrieved February 03, 2016.