History of Trinary Vision

Trinary Vision is the Intrinsic perk on Dead Messenger, a one-shot handheld Grenade Launcher. When its projectiles hit the ground, they release a fan of three energy waves.

The fan makes the weapon good for clearing groups of enemies, since one shot can reach several targets at once. Dead Messenger was a seasonal Exotic from the Vox Obscura mission in The Witch Queen.