Viktor Runes explained
There's one set of runes for Viktor on patch
12.18
that is the clear favorite for LoL players and pros alike. The best Viktor rune paths on the position 
Mid are Sorcery as the primary path and
Inspiration as the secondary path with a pick rate of 46%. Besides picking runes on Viktor you should learn how to play Viktor and if you are interested in pro matches take a look on how a pro builds Viktor. If you want to discuss
Viktor then you should visit the champion subreddit.
Viktor runes from primary path
Sorcery empoweres abilities of Viktor and increases the available champion resources. Most of high elo players – and our LoL pros in the the major regions – have agreed that
Summon Aery is the best keystone rune to run on
Viktor. This keystone rune adds more poke damage to your abilities. And additionally grants an extra shield, whenever Viktor empowers or protects an ally with abilities. Other primary runes on Viktor are
Manaflow Band,
Transcendence and
Scorch.
This is usually followed up by taking
Manaflow Band for additional mana and mana regenaration.
Transcendence for some more Ability Haste.
Scorch increases your control in the early game.
Viktor runes from secondary path
When it comes to your secondary path, most
Viktor players prefer to go with
Inspiration.
Inspiration opens creative opportunities on Viktor troughout the match. On the
Inspiration path, the best runes for Viktor are
Cosmic Insight and
Biscuit Delivery.
Cosmic Insight grants summoner spell and item haste.
Biscuit Delivery is a great rune for laning as it gives additional health and mana, which can help in more aggressive lanes.
FAQ for Viktor Runes
Which is the best keystone rune on Viktor?
The best keystone rune on Viktor is
Summon Aery. This Viktor runes setup is then referred as Viktor Summon Aery.
What runes does Viktor use?
Runes from the paths
Sorcery and
Inspiration are the most used runes on Viktor. For the exact pick rates of Viktor runes used, you have to study the rune distribution presented.