Shen Runes explained
There's one set of runes for Shen on patch 13.24 that is the clear favorite for LoL players and pros alike. The best Shen rune paths on the position 
Top are 
Resolve as the primary path and 
Domination as the secondary path with a pick rate of 100%. Besides picking runes on Shen you should learn how to play Shen and if you are interested in pro matches take a look on how a pro builds Shen. If you want to discuss 
Shen then you should visit the champion subreddit.
Shen runes from primary path
Resolve empowers the survivability of Shen and increases the tankiness. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
Grasp of the Undying is the best keystone rune to run on Shen. This keystone rune gives Shen alot of sustain and helps to force your opposing champion out of the lane. Other primary runes on Shen are 
Shield Bash, 
Bone Plating and 
Revitalize.
Shield Bash powers up your tankiness and empowers your next basic attack while you have a shield. Bone Plating make Shen overall tankier, by decreasing the amount of poke damage in the early game. Revitalize inceases heals and shields you distribute or receive.
Shen runes from secondary path
When it comes to your secondary path, most Shen players prefer to go with Domination. Domination improves burst damage and assassination tools on Shen. On the Domination path, the best runes for Shen are 
Ultimate Hunter and 
Cheap Shot.
Ultimate Hunter scales up Shen ultimate haste on every unique champion takedown. Cheap Shot makes you deal more damage to enemies with impaired movement, which has great synergy with the setup of Shen.
FAQ for Shen Runes
Which is the best keystone rune on Shen?
The best keystone rune on Shen is Grasp of the Undying. This Shen runes setup is then referred as Shen Grasp of the Undying.
What runes does Shen use?
Runes from the paths Resolve and Domination are the most used runes on Shen. For the exact pick rates of Shen runes used, you have to study the rune distribution presented.