Master Builder

Master Builder was the highest rank attainable by a Forerunner Builder, those most powerful in Forerunner society in terms of intelligence, wealth and political power. The Master Builder served as the chief of the entire Builder rate and all guilds within it. The Master Builder was also the only person in the ecumene to know the location of the crystal from which the slipspace flakes for Forerunner slipspace drives were taken. The rank could be revoked by the Council and a Master Builder could be brought to trial by a Supreme Mantle Court, formed by the Council.

Faber was the last known Forerunner to hold the title around 100,000 BCE.

List of appearances

 * Halo: Cryptum
 * Halo: The Thursday War