Matchup
Skill matchup
Build vs Illaoi
Build adapted to this matchup
Starting items
Core build
Standard
Summoner spells
92%
5%Anti AD
Anti Heal
Anti AP
Anti Heal
Anti Tank
DPS
Other options
Precision
Conqueror
Triumph
Legend: Alacrity
Last Stand
Resolve
Unflinching
Second Wind
Power Spikes
Strength by game phase
Sett
IllaoiIllaoi's abilities
Passive, spells and ultimate
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
| Level | Q | W | E | R |
|---|---|---|---|---|
| 3 | 10s | 4s | 16s | – |
| 6 | 8s | 4s | 16s | 2m |
| 9 | 6s | 4s | 16s | 2m |
| 11 | 6s | 4s | 16s | 1m35 |
| 16 | 6s | 4s | 14s | 1m10 |
| 18 | 6s | 4s | 12s | 1m10 |
Playing against Illaoi
How to counter and exploit weaknesses
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.
NEVER fight Illaoi in her tentacles: lure her elsewhere. Destroy tentacles when you can.
Her R is dangerous with multiple champions nearby — don't group on her. Fight her in a 1v1 outside her zone.
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