Reservoir Burst is a trait in Destiny 2 that can appear on 33 weapons. There is also an enhanced version with a stronger effect.
What Reservoir Burst does
When the battery is full, your next burst deals additional damage and causes enemies to explode on death.
Enhanced version
When the battery is full, your next burst is improved, dealing additional damage and causing targets to explode when defeated.
Weapons that can roll Reservoir Burst (33)
Accelerando-42Strand · Fusion Rifle
AfterlightVoid · Fusion Rifle
Afterlight (Adept)Void · Fusion Rifle
Axial LacunaSolar · Fusion Rifle
Boomslang-4frArc · Linear Fusion Rifle
Cartesian CoordinateSolar · Fusion Rifle
Coriolis ForceVoid · Fusion Rifle
Eyes UnveiledVoid · Linear Fusion Rifle
Eyes Unveiled (Adept)Void · Linear Fusion Rifle
Finite MaybeSolar · Fusion Rifle
GlacioclasmVoid · Fusion Rifle
Line in the SandArc · Linear Fusion Rifle
Lionfish-4frStasis · Fusion Rifle
Loaded QuestionArc · Fusion Rifle
Loaded Question (Adept)Arc · Fusion Rifle
Main IngredientArc · Fusion Rifle
Midha's ReckoningArc · Fusion Rifle
Midha's Reckoning (Harrowed)Arc · Fusion Rifle
Nox Sidereal IVStasis · Fusion Rifle
Null ComposureVoid · Fusion Rifle
PLUG ONE.1Arc · Fusion Rifle
PLUG ONE.1 (Adept)Arc · Fusion Rifle
ResoundingStrand · Fusion Rifle
Royal ExecutionerSolar · Fusion Rifle
ScintillationStrand · Linear Fusion Rifle
Scintillation (Adept)Strand · Linear Fusion Rifle
Snorri FR5Void · Fusion Rifle
TAHOMA 01Strand · Fusion Rifle
The BeaconSolar · Fusion Rifle
The EremiteSolar · Fusion Rifle
The Wizened RebukeArc · Fusion Rifle
Willful HamartiaArc · Linear Fusion Rifle
Zealot's RewardVoid · Fusion Rifle