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

Have at least 3 full rune pages filled with different tier 3 runes, meaning:
 * 9 Tier 3 Quints
 * 27 Tier 3 Marks
 * 27 Tier 3 Seals
 * 27 Tier 3 Glyphs