In "Destiny 2," the exotic weapon you can obtain from the raid "Vow of the Disciple" is called "Collective Obligation." This is an exotic Void pulse rifle that has unique abilities making it highly sought after by players.
Collective Obligation stands out with its intrinsic perk called "Recreance." This perk allows the weapon to absorb the Void debuffs on defeated enemies, converting them into stacking bonuses to weapon damage, reload speed, and handling for a short time. Another distinctive feature is the "Volatile Current" trait, which causes the weapon to release a burst of damaging Void energy around you when reloading after a kill.
To obtain the Collective Obligation, players need to complete the Vow of the Disciple raid and defeat the final boss, Rhulk. The weapon has a chance to drop directly from this encounter. However, like many raid exotics, the drop rate is not guaranteed on each run, making it a rare and prestigious item to acquire.