Illaoi Runes explained
There's one set of runes for Illaoi on patch 14.9 that is the clear favorite for LoL players and pros alike. The best Illaoi rune paths on the position 
Top are 
Precision as the primary path and 
Inspiration as the secondary path with a pick rate of 45%. Besides picking runes on Illaoi you should learn how to play Illaoi and if you are interested in pro matches take a look on how a pro builds Illaoi. If you want to discuss 
Illaoi then you should visit the champion subreddit.
Illaoi runes from primary path
Precision improves attack and sustained damage on Illaoi troughout the match. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
Conqueror is the best keystone rune to run on Illaoi. This keystone rune provides additional power in the later stages of a game. As soon as Conqueror is fully charged, Illaoi deals additional damage and gains life steal. Other primary runes on Illaoi are 
Presence of Mind, 
Legend: Tenacity and 
Last Stand.
Presence of Mind helps Illaoi with the mana problems by restoring missing mana, if a champion is killed. Illaoi gains extra Tenacity with every additional stage of Legend: Tenacity. With Last Stand you deal more damage while you are at low health.
Illaoi runes from secondary path
When it comes to your secondary path, most Illaoi players prefer to go with Inspiration. Inspiration opens creative opportunities on Illaoi troughout the match. On the Inspiration path, the best runes for Illaoi are Biscuit Delivery and Time Warp Tonic.
Biscuit Delivery is a great rune for laning as it gives additional health and mana, which can help in more aggressive lanes. Time Warp Tonic gives you additional sustain by boosting your Health Potion and Total Biscuit of Everlasting Will.
FAQ for Illaoi Runes
Which is the best keystone rune on Illaoi?
The best keystone rune on Illaoi is Conqueror. This Illaoi runes setup is then referred as Illaoi Conqueror.
What runes does Illaoi use?
Runes from the paths Precision and Inspiration are the most used runes on Illaoi. For the exact pick rates of Illaoi runes used, you have to study the rune distribution presented.