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Matchup

Rell
Rell
0%
100%

vs

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

Build vs Illaoi

Build adapted to this matchup

Starting items

Health Potion
x2

Core build

Zeke's Convergence
1Tank
Locket of the Iron Solari
2HP
Knight's Vow
3vs AD

Standard

Boots of Swiftness
4vs Slow
Celestial Opposition
5HP

Summoner spells

41467%
4733%

Anti AD

Plated Steelcaps
4vs AD
Thornmail
5vs Hybride

Anti AP

Mercury's Treads
4vs CC
Bandlepipes
5vs Hybride

Other options

Celestial Opposition
HP
Protoplasm Harness
Survival
ResolveResolve
AftershockAftershock
Font of LifeFont of Life
Bone PlatingBone Plating
UnflinchingUnflinching
InspirationInspiration
Hextech FlashtraptionHextech Flashtraption
Cosmic InsightCosmic Insight
Ability HasteMove SpeedHealth

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
RellRell
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