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Prophet of an Elder God
STATIC COOLDOWN: 20 - 12 (based on level)
Prophet of an Elder God

Innate: Illaoi periodically spawns a Tentacle on nearby impassable terrain if none are nearby, which remains on the battlefield until killed or when disabled for 60 seconds.

Tentacles deal 10 - 180 (based on level) (+ 120% AD) physical damage when commanded to attack by her abilities. Each tentacle also Redemption item heals Illaoi for 5% missing health if it hits at least one enemy champion. See Pet Details for more.

Ability Details
  • Tentacles do not spawn in the Nexus Obelisk's attack range.
  • Illaoi has infinite range from which she can spawn a Tentacle. However, if she’s in an area near a spawned Tentacle, she must leave it if she wants to spawn another one.
  • They take about 2 seconds to finish their spawn animation.
  • The Tentacle has a 1 second dormant immunity when it spawns, making it able to start an attack even if Illaoi or a Vessel are not nearby.
  • If Illaoi uses Harsh Lesson Harsh Lesson during Tentacles' spawn animation, they won't attack but the SFX of the attack will still be heard.
    • If this happens, after the Tentacle finishes its spawn animation, it will be unable to start an attack for its remaining attack SFX.
Illaoi IVideo
Tentacle Smash
COST: 40 / 45 / 50 / 55 / 60 Mana
COOLDOWN: 10 / 9 / 8 / 7 / 6

Passive: Tentacles deal increased damage.

Damage Increase:
10 / 15 / 20 / 25 / 30%
Tentacle Smash

Active: Illaoi slams her idol into the ground, summoning a Tentacle that slams down in the target direction, dealing physical damage before disappearing.

Ability Details
  • Before upgrading the ability to rank 1 it will show a damage increase of 5%. Only when it's upgraded the increase becomes 10%.
  • The damage zone changes based on Illaoi's position (e.g during Airborne icon displacements).
Illaoi QVideo
Harsh Lesson
COST: 30 Mana
Harsh Lesson

Active: Illaoi's next basic attack within 6 seconds gains 225 bonus range and causes her to dash to her target if it's not inside her base attack range, dealing bonus physical damage, capped at 300 against non-champions, and commanding all Tentacles in range to attack her target.

Bonus Physical Damage:
3 / 3.5 / 4 / 4.5 / 5% (+ 2% per 100 AD) of target's maximum health

Harsh Lesson resets Illaoi's autoattack timer.

Ability Details
  • The attack will break Spell Shield spell shields but it will not prevent the damage or the Tentacle slam.
  • Each parry has got different interactions with this ability:
    • Counter Strike Counter Strike: does not deal damage and does not proc the Tentacle slam.
    • Aegis Protection Aegis Protection and Spirit's Refuge Spirit's Refuge:
      • Close range: does not deal damage but does proc the Tentacle slam.
      • Dash range: does not deal damage and does not proc the Tentacle slam.
    • Blinding Dart Blinding Dart:
      • Close range: does not deal damage and does not proc the Tentacle slam.
      • Dash range: does deal damage and does proc the Tentacle slam.
  • While Grounded icon grounded Illaoi will walk into melee range before using this ability.
  • She can still dash even if she's Root icon rooted.
  • It will not affect structures, but the enhanced attack will be consumed.
  • The attack will apply spell effects and the bonus damage will heal from spell vamp.
Illaoi WVideo
Test of Spirit
COST: 35 / 40 / 45 / 50 / 55 Mana
COOLDOWN: 20 / 18 / 16 / 14 / 12
Test of Spirit

Active: Illaoi unleashes a tentacle in the target direction, stopping at the first enemy hit. If the enemy is a champion, it pulls its Spirit, placing it in front of Illaoi. The target is tethered to the Spirit, and True Sight icon revealed while it remains active.

Spirits have the target's current health and last for 10 seconds, reduced by 1 second each time the target damages Illaoi (by single target or area of effect). Illaoi and her allies can attack the Spirit to inflict a portion of the damage dealt to the tethered champion.

Damage Transmission:
25 / 30 / 35 / 40 / 45% (+ 8% per 100 AD)

The tether is severed if the Spirit is killed or when the target moves too far away, Slow icon slowing them by 80% for 1.5 seconds, marking them as a Vessel for 12 seconds, and Sight icon revealing the area around them for a few seconds.
Each Tentacle will autonomously attack the closest Vessel / Spirit once every 10 seconds.


Vessel: It spawns a Tentacle near it every 5 / 4 / 3 seconds but it's able to stop the effect by Damage rating taking down Illaoi.

Ability Details
  • Spell Shield Spell shields will only prevent your Spirit from being grabbed. Spell shields will not prevent you from becoming a Vessel or prevent Tentacles from attacking you, although they can be used to block a Tentacle's attack.
  • Riposte Riposte can prevent from becoming a Vessel if used before the Spirit gets killed or while Lunge lunging out of the tether's range.
  • The first cast of the ability won't be seen by enemies if Illaoi is in the fog of war.
  • Spirits are classified as Decoys, making them targetable as a champion.
  • Towers, minions, and neutral monsters can attack Spirits.
  • Killing a Spirit rewards you with Gold 25.
  • Redirected damage (damage dealt before damage modifiers but after applying the ability's modifier) cannot exceed the Spirit's current health. Following this the damage will be affected by modifiers and will be able to exceed the Spirit's current health.
    • Hybrid penetration True damage is not affected by these modifiers but will be modified by Test of Spirit's modifier.
  • The amount of damage that will be redirected to the Vessel does not take into account the Spirit's damage modifiers - the redirected damage is only modified once, by the Vessel's modifiers.
    • The damage shown being received by Spirit is not representative of the damage redirected to the Vessel, as the combat text shown adjacent to the Spirit factors the Spirit's modifiers - which may be different from the Vessel's (e.g different resistances, Coup de Grace rune Coup de Grace).
  • Damage transferred to the target will apply damage-type specific effects such as The Black Cleaver item The Black Cleaver, Morellonomicon item Morellonomicon, Executioner's Calling item Executioner's Calling, or the healing from Death's Dance item Death's Dance / Hextech Gunblade item Hextech Gunblade, determined by who dealt the damage.
    • It will not trigger on-hit effects or spell effects versus the target (Scorch rune Scorch, Wit's End item Wit's End) although the damage of those effects dealt to the Spirit will be transferred.
  • Electrocute rune Electrocute/Phase Rush rune Phase Rush/Spellthief's Edge item Tribute stacks interaction:
    • Tentacle slams can only get a total of one stack.
    • A Harsh Lesson Harsh Lesson + Tentacle slam will only get one stack because the slam is considered part of Harsh Lesson.
    • A Harsh Lesson Harsh Lesson + Tentacle slam + Tentacles slam from a different source will still only apply one stack. The second won't apply it because it notices the slam has been used before.
  • The target will get slowed only after the tether returns back to it and not instantly.
  • If the target becomes a Vessel in a dormant Tentacle's attack range, that Tentacle will be prevented from doing its first attack.
Illaoi EVideo
Leap of Faith
COST: 100 Mana
COOLDOWN: 120 / 105 / 90
Leap of Faith

Active: Illaoi leaps into the air before slamming her idol into the ground, dealing physical damage to nearby enemies. For each enemy champion and Spirit hit, a Tentacle is summoned for 8 seconds (up to a maximum of 5 summons).

Physical Damage:
150 / 250 / 350 (+ 50% bonus AD)

For the duration, Harsh Lesson Harsh Lesson's cooldown is halved, all Tentacles awakened by Illaoi are Playful untargetable, will not go dormant, and will take half the amount of time to make an attack.

e "There are kind and gentle gods. Mine isn't one of those."
Ability Details
  • Illaoi is immune to Airborne icon displacements and Stasis icon stasis while in her cast animation.
  • Spirits are counted as champions for Leap of Faith's Tentacles spawning.
  • Illaoi will face the closest enemy champion when she ults, and will spawn Tentacles (850 range away from her, unless there's a wall blocking the way making the Tentacle spawn on it) based on:
    • The direction she's facing.
    • How many champions she hits.
      • 1+ champions: one Tentacle at 0 degrees.
      • 2+ champions: one Tentacle at 72 degrees.
      • 3+ champions: one Tentacle at 288 degrees.
      • 4+ champions: one Tentacle at 144 degrees.
      • 5+ champions: one Tentacle at 216 degrees.
  • Spell Shield Spell shields will block the ability's damage but will not prevent Tentacles from spawning.
Illaoi RVideo


Control type The Tentacle is commanded to attack each time a target in its range gets hit by Harsh Lesson Harsh Lesson.

The Tentacle is also able to automatically attack the closest target in its range every 10 seconds (counted after it finishes its first attack), which can be:

Its attacks get queued up if it receives more than one attack command. The queued attacks will always have 1 attack speed, even if affected by Leap of Faith Leap of Faith's buff.

Target type Ward (can be Teleport teleported to).
On-hit effects Hits through Counter Strike Counter Strike and Aegis Protection Aegis Protection.
Spell effects Applies spell effects as an area of effect ability.
  • Banshee's Veil item Spell shields will block the attack.
  • Tentacles that hit the same target within 0.5 seconds of each other deal 50% less damage than the previous tentacle, up to a cap of 75% less damage than the first.



The Tentacle damages all non-structure enemies it hits along its length, Redemption item healing Illaoi for 5% missing health if it hits at least one enemy champion. Healing stacks multiplicatively if more Tentacles attack at the same time, calculated by this formula: (maximum health − current health) × (1 − 0.95n), with 'n' the number of Tentacle hits.


The Tentacle alerts Illaoi whenever it takes damage.


The Tentacle becomes dormant if Illaoi and the Vessel Vessel are too far away, disabling its ability to subsequently attack, reducing itself to 1 health and disappearing after 60 seconds of dormancy. The Tentacle instantly reactivates if Illaoi or a Vessel Vessel move back in range.


The Tentacle enrages for 8 seconds after Leap of Faith Leap of Faith has been cast, becoming untargetable, unable to go dormant and taking half the amount of time to make an attack.


The Tentacle grants Sight icon sight of nearby Control Ward item Control Wards, and when about to Tentacle Smash slam it Sight icon reveals both the affected area to allies and itself to enemies.