There has been something that has bothered me since i learned about runes. Let's say I buy runes that were recommended in a guide for Annie or Ahri. What if I choose to play say Teemo or another champion? I mean I'd be using runes intended for a mage, but I'd be playing a non-mage.
So how do I customize runes per champ or for general purpose? Also, I'm aware of this question, but I don't think it answers my question completely.