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Matchup

Sona
Sona
38%
62%

vs

50.0%
Illaoi
Illaoi
73%
27%
Heavy AD damageSustained DPSHigh sustainSplit push

You are stronger late game — farm safe and avoid early trades.

Build vs Illaoi

Build adapted to this matchup

Starting items

Health Potion
x2

Core build

Tear of the Goddess
1
Diadem of Songs
2HP
Moonstone Renewer
3HP

Standard

Ionian Boots of Lucidity
4CDR
Dream Maker
5HP

Summoner spells

4760%
3440%

Anti AD

Plated Steelcaps
4vs AD
Zhonya's Hourglass
5vs AD

Anti CC

Mercury's Treads
4vs CC

DPS

Rabadon's Deathcap
Mage

Other options

Dream Maker
HP
Echoes of Helia
HP
Dawncore
Ardent Censer
Redemption
100.0% WR1 games
SorcerySorcery
Summon AerySummon Aery
Manaflow BandManaflow Band
TranscendenceTranscendence
Gathering StormGathering Storm
ResolveResolve
ConditioningConditioning
RevitalizeRevitalize
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
SonaSona
IllaoiIllaoi
Neutral
Neutral
Neutral

Illaoi's abilities

Passive, spells and ultimate

Prophet of an Elder God (P)

Illaoi and the Vessels she creates spawn Tentacles on nearby impassible terrain. Tentacles swing at spirits, Vessels, and victims of Illaoi's Harsh lesson. Tentacles deal physical damage to enemies hit, and will heal Illaoi if they damage a champion.

Cooldowns

Cooldowns by spell rank

LevelQWER
310s4s16s–
68s4s16s2m
96s4s16s2m
116s4s16s1m35
166s4s14s1m10
186s4s12s1m10

Playing against Illaoi

How to counter and exploit weaknesses

1

Dodge her E (Test of Spirit) at all costs — if she pulls your spirit, you must flee the area or fight at a massive disadvantage.

2

NEVER fight Illaoi in her tentacles: lure her elsewhere. Destroy tentacles when you can.

3

Her R is dangerous with multiple champions nearby — don't group on her. Fight her in a 1v1 outside her zone.

4

Illaoi has no mobility or hard CC: ganks and kiting are very effective.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026