Amalgamation Rounds is a trait in Destiny 2 that can appear on 1 weapon.
What Amalgamation Rounds does
Aiming down sights for a short period without firing compresses the spread into a single high-density projectile. Damaging a target with this shot marks them. This weapon deals additional damage to marked targets. Defeating a marked target or landing a precision final blow with an Amalgamation Round grants invisibility and truesight.
