Rune Knowledge.
Prerequisite: 12 Wisdom or higher
- You are wise in the lore of two runes of your choice. You always have access to their rune bonuses. In addition, every day you can invoke one rune power for each rune you've learned, provided you meet any other requirements such as a minimum level. You can select this feat multiple times. Each time you do you gain the bonus and powers of two additional runes of your choice. (Midgard pg 131)