Runes allow you to further customize your champion's stats. There are four types of Runes which provide bonuses to your champions:
- Marks: offensive stats;
- Seals: defense, healing, recovery;
- Glyphs: magical power and defense;
- Quintessences: any stat and bonuses that are not provided by other runes.
Their power varies and their level of provided stats is measured through Tiers. There are 3 tiers (from 1 - weakest to 3 - strongest).