Hadragal, Keeper of Memory

Hadragal, Keeper of Memory is a powerful Hive Wizard of the Lucent Brood who was charged with keeping watch over the Altar of Reflection. She can be found in the Altar of Reflection: Insight mission, where she is encountered as the final boss.

Gameplay
Hadragal appears in once you have completed the puzzles in first area and reached the main hall of the Altar of Reflection. She will call upon a Lucent Archivist Acolyte and a large horde of Hive Thrall and Acolytes. Hadragal's battle tactics are typical of a Wizard; bombarding players with a long stream of Arc-based projectiles, and casting clouds of poisonous smoke to potentially drive you into the open. Although she will call upon more reinforcements throughout the duration of the fight, she has no defensive capabilities and is completely vulnerable to all attacks, making her very easy to dispatch quickly. After Hadragal and the rest of the lesser Hive have been eliminated, you finally proceed through the giant door at the end of the hall and present object at the Altar of Reflection itself, granting you a message from Savathûn, the Witch Queen herself, left for the when she had been killed.

List of appearance

 * Destiny 2
 * The Witch Queen