User blog comment:Usiar/Actual Gameplay Requirements for Ranked?/@comment-4022742-20130119141104/@comment-3067750-20130119223241

DingyuChowMein, you're right, late game runes don't matter all that much.

However, early game, especially level 1 for say... an AD Carry, that could be ~600g worth of Attack Damage. (based on Long Sword - costs 400g and gives 10 AD)

Deshiba, general experience includes experience playing the champion they chose. It also includes experience typically best learned through actual gameplay. Which a requirement such as the one i mentioned would need people to have.