Runes of Fealty are tokens of loyalty that allow you to raise your League's maximum membership limit. (Max: 150 members).
Upon reaching level 50, League Members will automatically begin receiving League Runes of Fealty for every 5th additional Level attained. The rate at which Runes of Fealty are earned will increase over time:
Level 50 – 1 Rune of Fealty
Level 55 – 2 Runes of Fealty
Level 60 – 3 Runes of Fealty
Level 65 – 4 Runes of Fealty
Starting from Level 70 – 5 Runes of Fealty
To use the feature, go to the Embassy and open the "My League"/"Expansion" tab. From here you can view how many Runes of Fealty you and your League members currently have available, or apply your Runes of Fealty towards raising your membership limit. Each additional League Membership slot requires 20 Runes of Fealty to unlock. All level 50+ League Members may contribute towards League expansion. All Runes of Fealty have been retroactively applied to reflect current Experience Levels.