Corki Runes explained
There's one set of runes for Corki on patch 14.9 that is the clear favorite for LoL players and pros alike. The best Corki rune paths on the position 
Mid are 
Inspiration as the primary path and 
Domination as the secondary path with a pick rate of 74%. Besides picking runes on Corki you should learn how to play Corki and if you are interested in pro matches take a look on how a pro builds Corki. If you want to discuss 
Corki then you should visit the champion subreddit.
Corki runes from primary path
Inspiration opens creative opportunities on Corki troughout the match. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
First Strike is the best keystone rune to run on Corki. Other primary runes on Corki are 
Magical Footwear, 
Biscuit Delivery and 
Cosmic Insight.
Magical Footwear allows Corki to focus on those essential core items without the need to spend the additional 300 gold on boots. Biscuit Delivery is a great rune for laning as it gives additional health and mana, which can help in more aggressive lanes. Cosmic Insight grants summoner spell and item haste.
Corki runes from secondary path
When it comes to your secondary path, most Corki players prefer to go with Domination. Domination improves burst damage and assassination tools on Corki. On the Domination path, the best runes for Corki are Ultimate Hunter and Taste of Blood.
Ultimate Hunter scales up Corki ultimate haste on every unique champion takedown. Taste of Blood heals Corki as soon as you damage an opposing champion.
FAQ for Corki Runes
Which is the best keystone rune on Corki?
The best keystone rune on Corki is First Strike. This Corki runes setup is then referred as Corki First Strike.
What runes does Corki use?
Runes from the paths Inspiration and Domination are the most used runes on Corki. For the exact pick rates of Corki runes used, you have to study the rune distribution presented.