League of Legends (LoL) Question: Rakan runes???

I use the following setup:
You can also go Biscuit Delivery and Cosmic Insight if you prefer. Both options feel fine to me. For the stat slots, Adaptive stats and Armor are always solid. I usually go for something like AP/AP/Armor or AP/Armor/HP.

With all due respect, there are plenty of guides out there that'll tell you what runes work well for Rakan. All it takes is spending some time to read them.