Rammus Runes explained
There's one set of runes for Rammus on patch 14.9 that is the clear favorite for LoL players and pros alike. The best Rammus rune paths on the position 
Jungle are 
Resolve as the primary path and 
Inspiration as the secondary path with a pick rate of 48%. Besides picking runes on Rammus you should learn how to play Rammus and if you are interested in pro matches take a look on how a pro builds Rammus. If you want to discuss 
Rammus then you should visit the champion subreddit.
Rammus runes from primary path
Resolve empowers the survivability of Rammus and increases the tankiness. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
Aftershock is the best keystone rune to run on Rammus. This keystone rune bulks you up, increasing both armour and magic resistance, once you immobilized a champion. Aftershock synergises both with the sheer amount of crowd control Rammus possesses and the need to be tanky as soon as you engage. Other primary runes on Rammus are 
Demolish, 
Conditioning and 
Overgrowth.
Demolish increases your pressure on the enemy turrets. This rune will help you to punish bad roams or backtimings of your lane opponent. Conditioning powers up Rammus tankiness after the laning phase. Overgrowth increases your maximum amount of health.
Rammus runes from secondary path
When it comes to your secondary path, most Rammus players prefer to go with Inspiration. Inspiration opens creative opportunities on Rammus troughout the match. On the Inspiration path, the best runes for Rammus are Cosmic Insight and Magical Footwear.
Cosmic Insight grants summoner spell and item haste. Magical Footwear allows Rammus to focus on those essential core items without the need to spend the additional 300 gold on boots.
FAQ for Rammus Runes
Which is the best keystone rune on Rammus?
The best keystone rune on Rammus is Aftershock. This Rammus runes setup is then referred as Rammus Aftershock.
What runes does Rammus use?
Runes from the paths Resolve and Inspiration are the most used runes on Rammus. For the exact pick rates of Rammus runes used, you have to study the rune distribution presented.