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Senna OriginalCentered.jpg
Senna
Senna (Universe)Senna (Universe)
Senna (League of Legends)Senna (League of Legends)
Senna (Teamfight Tactics)Senna (Teamfight Tactics)
Senna (Legends of Runeterra)Senna (Legends of Runeterra)
Senna (Wild Rift)Senna (Wild Rift)
Senna (Development)Senna (Development)

Senna is a champion in League of Legends.[1]

Abilities

Edit

Basic Attack

Basic Attack.png

Basic Attack: Senna blasts the target with her relic cannon, dealing 100% AD physical damage and applying On-hit icon.png on-hit effects.

Senna's basic attacks can Critical strike icon.png critically strike, but they only deal 「 (160.125% + 32.025% 32.025%) AD physical damage. 」「 91.5% of the Critical strike damage icon.png critical damage champions usually have. 」

Senna has an attack ratio of 0.3, meaning she only gains「 +0.3 Attack speed icon.png attack speed per 100% bonus attack speed. 」「 48% of the attack speed she would gain if her attack speed ratio was the same as her base attack speed. 」

Additionally, Senna's base attack's windup is reduced「 to 31.25% − 21.875% (based on level), 」「 by 0% − 30% (based on level), 」but is only reduced by 60% of the expected value given attack speed bonuses.

Info
  • At level 18, only with the per level bonus attack speed, Senna will have 0.829 attack speed, and will take 0.33 seconds to perform an attack compared to 0.528 seconds at level 1.

Edit

Absolution

Senna Absolution.png

Innate - Weakened Soul: Senna's basic attacks On-hit icon.png on-hit and damaging abilities on enemy champions apply Mist for 4 seconds, modified to 0.75 seconds if Senna starts winding up a basic attack on them. If Senna applies Mist to the same target twice, she collects it, dealing 1% − 16% (based on level) of target's current health as bonus physical damage, and rendering the target immune to further Mist applications for a few seconds. This damage applies Life steal icon.png life steal at 100% effectiveness.

MistWraithSquare.png

Enemy units that die near Senna have a chance to spawn a Mist Wraith from their corpse, increased to 2 Mist Wraiths for epic monsters. Mist Wraiths last 8 seconds and Senna can basic attack or hit them with Piercing Darkness Piercing Darkness or Dawning Shadow Dawning Shadow to kill them instantly, granting her 8 Gold 8 and collecting their Mist.

  • Enemy Champion icon.png champions and large Monster icon.png monsters are guaranteed to spawn a Mist Wraith.
  • Minion icon.png Minions and lesser Monster icon.png monsters that Senna kills have a 10% chance to spawn a Mist Wraith.
  • Large Minion icon.png minions that Senna doesn't kill are guaranteed to spawn a Mist Wraith, while lesser Minion icon.png minions and lesser Monster icon.png monsters that Senna doesn't kill have a 28% chance to do so.

Innate - Absolution: Each stack of Mist grants Senna Attack damage icon.png 0.75 bonus attack damage. For every 20 stacks, Senna also gains Range icon.png 20 bonus attack range and Critical strike chance icon.png 10% critical strike chance, capped at 100% critical strike chance. Additionally, 35% of the generated excess critical strike chance is converted into Life steal icon.png life steal.

Senna Absolution 2.png

Innate - Relic Cannon: Senna's basic attacks On-hit icon.png on-hit deal 20% AD bonus physical damage and grant her 10 / 15 / 20% (based on level) of the target's movement speed as Movement speed icon.png bonus movement speed for 0.5 seconds. This damage applies Life steal icon.png life steal at 100% effectiveness.

Info
  • Despite Senna dealing 1 damage to Mist Wraiths, attacking them will calculate the attack's damage (including Critical strike icon.png critical strike modifiers) and any on-hit effects for the purposes of Life steal icon.png life steal and Ravenous Hunter rune.png drain effects.
  • Relic Cannon is only applied if the attack deals more than 0 damage.
    • Hence, it is not applied if the target is Taric Cosmic Radiance.png invulnerable or Senna's basic attack's Attack damage icon.png attack damage is reduced to 0 or below.
  • Dealing 0 damage is valid for marking and collecting Mist from champions, but dealing no damage at all is not.
    • Hence, Senna can mark and collect from Taric Cosmic Radiance.png invulnerable enemies.
    • Jax Counter Strike.png Dodge prevents marking and collecting a Mist via Senna's basic attacks and Piercing Darkness Piercing Darkness.
    • 𝐏𝐄𝐍𝐃𝐈𝐍𝐆 𝐅𝐎𝐑 𝐓𝐄𝐒𝐓 : Mist interaction with Shen Spirit's Refuge.png block and Blind icon.png blind.
  • Nunu & Willump Nunu & Willump spawn a wraith each.
  • Enemies will not see newly spawned wraiths while Senna is not visible.
  • Minion icon.png Minions executed by allies with Spoils of War have a 4.166% chance to spawn wraiths.
  • A wraith can be hit by Cosmic Binding Cosmic Binding and it will interact with it the same way minions or monsters interact with Cosmic Binding but it will not take damage.
  • Mist Wraith has a spawn animation, but is targetable immediately.
  • Mist Wraith grants a small amount of Sight icon.png sight around itself.
  • Runaan's Hurricane Runaan's Hurricane secondary bolts will ignore Mist Wraiths.
  • Attacking a Mist Wraith will not consume energized stacks, but you can benefit from the range increase of Rapid Firecannon Rapid Firecannon when collecting wraiths.
  • Excluding the range increase and the bonus shielding on Dawning Shadow Dawning Shadow, one stack of Mist is worth approximately 44.55 Gold 44.55 (+8 Gold +8 from Mist Wraith pickup), 32.8125 Gold 32.8125 if the critical chance is converted to life steal. The bonuses have a gross value of 46.25 Gold 46.25 (32.8125 Gold 32.8125 with life steal).
    • Attack damage icon.png 0.75 AD is worth 26.25‬ Gold 26.25.
    • Critical strike chance icon.png 0.5% critical strike chance is worth 20 Gold 20. Absolution reduces its efficiency by 8.5%, making the value 18.3 Gold 18.3.

Map-Specific Differences
Mirror Mode profileicon.png One for All differences edit
  • Wraiths are not shared.
  • Weakened Soul debuff application is individually tracked and does not interact among multiple users.

Video

Edit

Piercing Darkness

Senna Piercing Darkness.png

Active: Senna fires a spectral laser in the direction of the target unit, Heal power icon.png healing herself and allied Champion icon.png champions in a line, and dealing physical damage to enemies in a thinner line. The damage applies Life steal icon.png life steal at 100% effectiveness.

Healing:
40 / 60 / 80 / 100 / 120 (+ 40% bonus AD) (+ 40% AP) (+ 1.6 per 1 Lethality)
Physical Damage:
40 / 70 / 100 / 130 / 160 (+ 50% bonus AD)

Upon being struck, enemy Turret icon.png turrets, Ward icon.png wards, jungle plants, MistWraithSquare.png Mist Wraiths and any other attack-interactive units are considered basic attacked once, while Champion icon.png champions and Turret icon.png turrets* are applied On-hit icon.png on-hit effects at 100% effectiveness.

Basic attacks reduce Piercing Darkness' Cooldown reduction icon.png cooldown by 1 second On-hit icon.png on-hit.

Info
  • Piercing Darkness also applies most Lulu Pix, Faerie Companion.png on-attack effects to one enemy champion struck, and ocassionally to two.(bug)
    • Hail of Blades Hail of Blades will spend a stack on hitting a champion with Piercing Darkness but only if Hail of Blades Hail of Blades was activated first by an auto-attack.
  • Piercing Darkness' cast time is always 80% of the caster's attack windup time.
    • Because Senna's windup percent scales down with levels but her windup time also only scales with 60% attack speed, the precise numbers get complicated quickly.
    • At base attack speed and level 1, Senna's attack windup is 0.5 seconds.
    • Reducing Senna's attack speed via Cripple icon.png attack speed reductions also increases Piercing Darkness' cast time by 60% of the fraction.
    • Piercing Darkness' cast time reduction per level via her own windup-per-level-reduction mirrors Lucian's Lucian's Piercing Light's Piercing Light's cast time values.
  • Senna can generally target anything that is not either explicitly Fizz Playful.png untargetable or herself.
    • Valid targets include anything that can be targeted by a basic attack from someone.
  • Piercing Darkness will attempt to lead the target if it is moving but does not adjust further during cast time (enemies can dodge the laser if they change their position by a sufficient amount during the cast time).
    • It leads by (up-to?) 80 units.
  • On-hit effects are applied in order of struck units' spawn IDs. This matters for effects that are consumed on-hit (e.g. Duskblade of Draktharr Duskblade of Draktharr, Sheen item.png Spellblade), which are applied to the target with the lowest Spawn ID.
    • "Spawn ID" is an unofficial abbreviation to describe the spawn order for all units at the beginning of games, below are some examples.
    • If Senna targets an enemy champion but hits at least one more enemy champion simultaneously, Press the Attack's Press the Attack's first stack will be applied to that target. If no champion was targeted, it will default to the champion with the lowest Spawn ID out of the ones struck by the ability. Whether the effect stacks up on a champion or not when multiple enemy champions are stuck also depends on Spawn ID.
    • If Piercing Darkness struck an enemy champion and turret simultaneously, with Rapid Firecannon Rapid Firecannon fully charged, the passive effect will most likely proc on the turret since towers are often spawned before champions.
  • For on-attack effects, they are also applied in order of struck units' spawn IDs. However, there are some specific on-attack effects that will apply to both the target of Piercing Darkness and the target with the lowest Spawn ID if the two unit is not identical. (bug) Confirmed cases:
    • Energized effects are stacked 2 stacks
    • Spectral Waltz are granted 2 stacks
    • 𝐏𝐄𝐍𝐃𝐈𝐍𝐆 𝐅𝐎𝐑 𝐓𝐄𝐒𝐓
  • Sivir Spell Shield.png Spell shield will not prevent on-hit effects from being applied.
  • 𝐏𝐄𝐍𝐃𝐈𝐍𝐆 𝐅𝐎𝐑 𝐓𝐄𝐒𝐓 : Piercing Darkness interaction with Jax Counter Strike.png dodging, Shen Spirit's Refuge.png blocking, and Blind icon.png blinding effects.
  • The maximum healing increase gained possible from all lethality sources is 192 at 120 lethality.

Video

Edit

Last Embrace

Senna Last Embrace.png

Active: Senna throws a globule of Black Mist in the target direction that deals physical damage to the first enemy hit and sticks onto them for 1 second.

Physical Damage:
70 / 115 / 160 / 205 / 250 (+ 70% bonus AD)

After the duration or when the target dies, the Black Mist spreads out of the target, Root icon.png rooting them and enemies near them for a few seconds.

Root Duration:
1.25 / 1.5 / 1.75 / 2 / 2.25

Info
  • Last Embrace will not Root icon.png root the primary target if they are Fizz Playful.png untargetable.
  • Last Embrace will cast from wherever Senna is at the end of the cast time.

Video

Edit

Curse of the Black Mist

Senna Curse of the Black Mist.png

Active: Senna surrounds herself with an aura of mist and gains Twitch Ambush 2.png camouflage for a duration. If Senna breaks the camouflage, she regains it after 1.75 seconds of not performing actions that break stealth.

Effect Duration:
6 / 6.5 / 7 / 7.5 / 8

Allied champions who enter the mist gain Wraith Form for a duration equal to the remaining duration.

Senna Curse of the Black Mist 2.png

Wraith Form: Gain Twitch Ambush 2.png camouflage. Enemies will have Sweeper Drone icon.png obscured vision of Wraiths moving outside of the mist. Wraith Form can be regained if lost by breaking the camouflage after 1.75 seconds of not performing actions that break stealth. Wraith Form ends immediately upon Senna's Death.png death.

Senna and allies camouflaged by Curse of the Black Mist also gain Movement speed icon.png 20% (+ 5% per 100 AP) bonus movement speed.

 
   "Shadows catch the fallen."

Info
  • Senna can move while casting.
  • Allies affected by the Curse of the Blast Mist aura receive a buff called Cloak of Mist.
  • Obscured units appear as Wraiths, hence the name. The wraith model does not distinguish which champion is obscured.
    • On the mini-map, obscured champions will be displayed as wraith icons instead of champion icons to the enemy team.
  • In-game, the 'Cloak of Mist' buff grants camouflage and the 'Wraith Form' buff obscures the unit and grants movement speed. However, 'Cloak of Mist' has the unspecified effect of negating the obscuring effects of 'Wraith Form' (i.e. the unit is not a wraith while inside the mist); the unit has the bonus movement speed even when they are not a wraith (e.g. inside the mist or an enemy is nearby); and 'Wraith Form' also grants the functionality of camouflage (i.e. the unit is treated as a camouflaged unit with regards to True Sight icon.png True Sight, Control Wards Control Wards, and enemy Champion icon.png champions).
    • Given this overly complex interaction between the two buffs granted as well as the overlapping effects, it is easier to describe the effects as a single buff that is modified in specific circumstances rather than trying to establish a new game mechanic.
    • Senna likewise has her aura buff and the 'Wraith Form' buff, but her 'Wraith Form' does not share gameplay functionality with other allies benefiting from Wraith Form. For Senna, the appearance of being a wraith is a form-swap while camouflaged (similar to Evelynn's Evelynn's Demon Shade Demon Shade). Senna will remain in her wraith form when she is detected so long as the camouflage effect isn't broken, and her wraith's appearance is very distinct from other wraiths.
  • Allied champions who enter the mist and have Teemo Guerrilla Warfare.png stealth of their own will still gain the Wraith Form buff but they will not grant Sweeper Drone icon.png obscured vision of themselves to the enemy while out of the mist nor will they appear as a Wraith.
    • Allies who have their own Twitch Ambush 2.png camouflage and also have Wraith Form will be revealed to enemies from their stealth's detection range, not Wraith Form's.
  • Curse of the Black Mist will not activate if Senna enters Revival icon.png resurrection during the cast time.
  • Wraith Form will not be granted to allies that are in a Yorick Omen of Death.png zombie state or are Channeling icon.png channeling. It will be granted to allies even if they are Fizz Playful.png untargetable.

Video

Edit

Dawning Shadow

Senna Dawning Shadow.png

Active: Senna Sight icon.png reveals herself before firing two waves of spectral light in the target direction, granting Sight icon.png sight of the area briefly along the path. The center wave deals physical damage to enemy Champion icon.png champions hit.

Physical Damage:
250 / 375 / 500 (+ 100% bonus AD) (+ 70% AP)
Senna Dawning Shadow 2.png

The broad wave Hybrid resistances icon.png shields Senna and allied champions hit for 3 seconds, and collects any Mist Wraiths Mist Wraiths in the way.

Shield:
120 / 160 / 200 (+ 40% AP)
(+ 1.5 per Mist Mist collected)
 
   "No shadow without light!"

Info
  • Senna will fire from wherever Senna was at the start of the cast time.

Tips & Tricks
  • The broad wave is a singular projectile that can be Projectile.png destroyed.

Video

Pets

Control type Autonomous
Target type Minion
Protection

Only Senna herself can interact with Mist Wraith.

Abilities

Wraith

Is considered an enemy unit.

Wandering

Disappears after 8 seconds.


Patch history

For the expanded patch notes, see here.
V11.20
V11.17
  • Absolution Absolution
    • Critical strike damage reduction reduced to 8.5% from 14%.
      • Critical strike damage increased to 160.125% from 150.5%.
    • Mist Wraith spawn rate on minions she kills increased to 10% from 4.166%.
V11.15
V11.11
V11.5
  • Absolution Absolution
    • New Effect: Can now only grant a maximum of 100% critical strike chance.
      • Excess critical strike chance is still converted into life steal.
V11.2
  • Stats
    • Attack speed ratio increased to 0.3 from 0.2.
  • Absolution Absolution
    • Mist Wraith spawn rate on minions she doesn't kill increased to 28% from 22%.
    • Mist Wraith gold increased to 8 Gold 8 from 3 Gold 3.
  • Piercing Darkness Piercing Darkness
    • Heal AP ratio increased to 40% AP from 25% AP.
    • Damage bonus AD ratio increased to 50% bonus AD from 40%.
    • Bug Fix: Now properly grants a stack of Kraken Slayer's Kraken Slayer's Bring It Down when hitting enemy champions and turrets.
V10.23
  • Absolution Absolution
    • Critical strike damage reduction reduced 14% from 35%.
      • Critical strike damage increased to 150.5% from 130%.
    • Critical strike chance per 20 stacks reduced 10% from 15%.
  • Dawning Shadow Dawning Shadow
    • New Effect: Can now collect Mist Wraiths.
V10.19
  • Absolution Absolution
    • Mist Wraith spawn rate on minion and lesser monster kills reduced to 4.166% from 8.33%.
V10.12
  • General
    • Bug Fix: Her Critical strike icon.png critical strike attacks no longer have longer windup time than her standard attacks.
  • Absolution Absolution
    • Mist Wraith spawn rate on minion kills increased to 8.33% from 1.67%.
V10.11
V10.8
  • Absolution Absolution
    • Mist Wraith spawn rate on minions she doesn't kill reduced to 22% from 25%.
V10.6
  • Absolution Absolution
    • Bonus attack damage per stack reduced to 0.75 from 1.
    • On target cooldown increased to 6 / 5 / 4 (based on level) seconds from 4 at all levels.
V10.3
  • Absolution Absolution
    • Mist Wraith spawn rate on minions Senna doesn't kill increased to 25% from 20%.
    • Mist Wraith spawn rate on large minion kills reduced to 1.67% from 100%.
    • New Effect: Minions executed by allies with Spoils of War now only have a 1.67% chance to spawn Mist Wraiths.
  • Curse of the Black Mist Curse of the Black Mist
    • Bug Fix: Allies no longer briefly become invisible if she dies while active.
V9.24
  • General
    • Recommended items updated.
  • Stats
    • Health growth reduced to 75 from 85.
  • Absolution Absolution
    • Mist Wraith spawn rate on minion kills reduced to 1.67% from 5.55%.
    • Removed: Champion clones no longer spawn Mist Wraiths.
    • Bug Fix: Allied Bard's Bard's Cosmic Binding's Cosmic Binding's can no longer damage Mist Wraiths.
  • Piercing Darkness Piercing Darkness
    • Base damage reduced to 40 / 70 / 100 / 130 / 160 from 50 / 80 / 110 / 140 / 170.
    • Damage AD ratio reduced to 40% bonus AD from 50%.
  • Last Embrace Last Embrace
    • Root duration reduced to 1.25 / 1.5 / 1.75 / 2 / 2.25 seconds from 1.45 / 1.65 / 1.85 / 2.05 / 2.25.
  • Dawning Shadow Dawning Shadow
    • Damage AP ratio increased to 50% AP from 40% AP.
V9.23
V9.22 - Added
  • Absolution Absolution (Innate)
    • Innate - Weakened Soul: Senna's basic attacks and abilities on enemy champions apply Mist for 4 seconds. Senna's next attack collects the Mist and deals 1% − 16% (based on level) of target's current health Attack damage.png bonus physical damage. The same target cannot be collected more than once every 4 seconds.
    • Enemy Champion icon.png champions, large Minion icon.png minions and large Monster icon.png monsters that die near Senna spawn a Mist Wraith for 8 seconds. Epic monsters spawn 2 Mist Wraiths instead. Small Minion icon.png minions and lesser Monster icon.png monsters have a 20% chance to spawn Mist Wraiths, reduced to 5.5% chance on those that Senna kills. Senna can basic attack a Mist Wraith to destroy it, gaining 3 Gold 3 and collecting its Mist.
    • Absolution: Each stack of Mist grants Senna Attack damage icon.png 1 bonus attack damage. For every 20 stacks, Senna also gains Range icon.png 25 bonus range and Critical strike chance icon.png 15% critical strike chance. Upon exceeding 100% critical strike chance, Senna converts 35% of the excess into Life steal icon.png life steal. Additionally, Spellthief's Edge Spellthief's Edge item-line grants Adaptive Force icon.png adaptive force instead of Ability power icon.png ability power.
    • Relic Cannon: Senna does not gain Attack damage icon.png attack damage through growth, her basic attack wind-up is only reduced by 0.6% per Attack speed icon.png 1% bonus attack speed, and her Critical strike icon.png critical strikes deal only (30% + 16.25% 16.25%) AD bonus physical damage, but her basic attacks deal 20% AD bonus physical damage and grant her 10 / 15 / 20% (based on level) of the target's movement speed as Movement speed icon.png bonus movement speed for 0.5 seconds.
    • ARAM-Specific Change: Gain 2 stacks per collection of Mist instead of 1.
  • Piercing Darkness Piercing Darkness (Q)
    • Active: After a brief delay, Senna fires a spectral laser in the direction of the target unit, Heal power icon.png healing herself and allied Champion icon.png champions in a line for 40 / 60 / 80 / 100 / 120 (+ 40% bonus AD) (+ 25% AP), and dealing 50 / 80 / 110 / 140 / 170 (+ 50% bonus AD) physical damage to non-ward enemies hit in a thinner line. Enemy champions take On-hit icon.png on-hit effects.
    • Mist Wraiths Mist Wraiths struck by the beam are collected for Senna.
    • Basic attacks reduce Piercing Darkness' Cooldown reduction icon.png cooldown by 1 second.
    • Mana Cost: 70 / 80 / 90 / 100 / 110.
    • Cooldown: 15 seconds.
    • Target Range: Senna's attack range.
    • Effect Radius: 1300.
    • Width: 130 / 260.
  • Last Embrace Last Embrace (W)
    • Active: Senna throws a globule of Black Mist in the target direction, dealing 70 / 115 / 160 / 205 / 250 (+ 70% bonus AD) physical damage and sticking onto the first enemy hit.
    • After a 1 second delay or when the target dies, the Black Mist spreads out of the target, Root icon.png rooting them and nearby enemies for 1.45 / 1.65 / 1.85 / 2.05 / 2.25 seconds.
    • Mana Cost: 50 / 55 / 60 / 65 / 70.
    • Cooldown: 11 seconds.
    • Target Range: 1175.
    • Detection Radius: 400.
    • Speed: 1200.
  • Curse of the Black Mist Curse of the Black Mist (E)
    • Active: Senna surrounds herself with an aura of mist for 6 / 6.5 / 7 / 7.5 / 8 seconds. The mist grants Twitch Ambush 2.png camouflage to Senna and allied champions inside, as well as a Wraith Form that lasts for the remaining duration. Senna's basic attacks and abilities will briefly break her out of Twitch Ambush 2.png camouflage.
    • Wraith Form: Gain Movement speed icon.png 20% bonus movement speed and appear as an Sweeper Drone icon.png obscured wraith to enemies beyond 150 units. Performing a basic attack or casting an ability removes Wraith Form, which cannot be regained for 2 seconds.
    • Mana Cost: 70.
    • Cooldown: 26 / 24.5 / 23 / 21.5 / 20 seconds.
    • Cast Time: 1 second.
    • Effect Radius: 400.
  • Dawning Shadow Dawning Shadow (R)
    • Active: Senna fires two beams of spectral light in the target direction, one granting Sight icon.png sight in a broad area, the other dealing 250 / 375 / 500 (+ 100% bonus AD) (+ 40% AP) physical damage to enemy Champion icon.png champions hit and afflicting them with Mist.
    • Senna and allied champions caught in any part of the area are Hybrid resistances icon.png shielded for 120 / 160 / 200 (+ 40% AP) (+ 1.5 per Mist Mist collected) for 3 seconds.
    • Mana Cost: 100.
    • Cooldown: 160 / 140 / 120 seconds.
    • Cast Time: 1.3 seconds.
    • Target Range: Global.
    • Width: 320 / 2400.
    • Speed: 20000.

See also

References

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