- "Hear me, loyal Principals who have gathered here tonight. You bear the Oath of the Covenant upon your foreheads. You will create our future, the Guild of the next generation."
- ―Delphine Eraclea
During Delphine Eraclea's reign as Maestro, however, Principals became combatants in the Trial of Agoon. Instead of choosing the new Maestro by majority vote, the position of Maestro went to the Principal to survive the arena and hold the Sword of the Covenant.