Yul
From Destiny 1 Wiki
Yul, the Honest Worm is one of the five Worm Gods, ancient beings second only to the Darkness itself in the hierarchy of the Hive pantheon. Yul was the one who addressed the progenitors of the Hive - Aurash, Xi Ro, and Sathona - when the three sisters delved into the core of Fundament and encountered the Worms.