You need to find the Bound Manacle for the Essence of Insanity quest. This guide tells you Where To Find Bound Manacle In Destiny 2 so you can locate this mysterious item, complete the quest, and receive your reward of the powerful Love and Death Grenade Launcher weapon.
Unlike most of the previous Essence items, the Insanity Essence doesn’t appear to drop from random enemies. Instead, it’s a potential reward you can receive when you complete one of the three Nightmare Hunts after you have finished the main story of Shadowkeep. Once you have the quest, you must complete the following objectives:
- Grenade Launcher Kills
- Bound Manacle Found
Where To Find Bound Manacle In Destiny 2 Shadowkeep
Head to this location in Hellmouth on the Moon. There’s a large passageway lit green. Head inside and take a left. Then follow the path deeper into the area until you reach The Gatehouse. Once you reach The Gatehouse keep progressing until you see this room.
Inside this room there is a mini-boss called Ehrathur External Blade. Kill him. Once you have killed him, he will drop the Bound Manacle.
That’s all you need to know to find the Bound Manacle in Destiny 2.