Evelynn Runes explained
There's one set of runes for Evelynn on patch 15.12 that is the clear favorite for LoL players and pros alike. The best Evelynn rune paths on the position 
Jungle are 
Domination as the primary path and 
Sorcery as the secondary path with a pick rate of 78%. Besides picking runes on Evelynn you should learn how to play Evelynn and if you are interested in pro matches take a look on how a pro builds Evelynn. If you want to discuss 
Evelynn then you should visit the champion subreddit.
Evelynn runes from primary path
Domination improves burst damage and assassination tools on Evelynn. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
Electrocute is the best keystone rune to run on Evelynn. This keystone rune provides burst damage, aiding them in nuking down the enemy carries. Other primary runes on Evelynn are 
Sudden Impact, 
Grisly Mementos and 
Relentless Hunter.
Sudden Impact increases your damage after dashing or being invisible. This is due to how easy it is to activate on Evelynn with the amount of ways he has to dash, jump or going invisible. The additional lethality helps to take down the priority targets that much easier. Relentless Hunter increases your movement speed out of combat due to every unique champion takedown.
Evelynn runes from secondary path
When it comes to your secondary path, most Evelynn players prefer to go with Sorcery. Sorcery empoweres abilities of Evelynn and increases the available champion resources. On the Sorcery path, the best runes for Evelynn are 
Gathering Storm and 
Absolute Focus.
Gathering Storm increases your late game power. Absolute Focus grants additional damage while Evelynn is alomst full health.
FAQ for Evelynn Runes
Which is the best keystone rune on Evelynn?
The best keystone rune on Evelynn is Electrocute. This Evelynn runes setup is then referred as Evelynn Electrocute.
What runes does Evelynn use?
Runes from the paths Domination and Sorcery are the most used runes on Evelynn. For the exact pick rates of Evelynn runes used, you have to study the rune distribution presented.