Guild Wars 2: Path of Fire content

Prime Light Beam

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Prime Light Beam

Not available underwater  
Engineer icon small.png Engineer (skill list)
Holosmith icon small.png Holosmith
Training cost
25 Hero points
Game link
10.25¼ Activation time  
60 Recharge time
40 Recharge time
Prime Light Beam

Exceed. Charge up and fire an explosive beam of light in front of you. When activated above the heat threshold, this attack leaves behind a burning holographic field.

Damage.png Damage: 798 (3.0)?
Damage.png Damage: 266 (1.0)?
Damage.png Field Damage: 133 (0.5)?
Heat.png Heat Threshold: 50
Burning.png Field Burning (3s): 393 Damage
Launch.png Launch: 240
Number of targets.png Number of Targets: 5
Miscellaneous effect.png Field Pulses: 10
Duration.png Field Duration: 10 seconds
Explosion.png Explosion
Evade.png Defiance Break: 232
Range.png Range: 1,200
Unblockable.png Unblockable

— In-game description

Related traits[edit]

Explosives Explosives

Firearms Firearms

Inventions Inventions

Alchemy Alchemy

Tools Tools

Holosmith Holosmith



  • With the trait Enhanced Capacity Storage Unit when above 100% heat this skill has an additional 20% damage and additional 50% burning duration in PvE, while in PvP and WvW it has additional 10% damage and additional 10% burning duration.

Version history[edit]

For a detailed skill history, see here.

Patch Changes
April 16, 2024
  • Fixed an issue that caused this skill to strike 10 targets instead of the intended 5.
June 27, 2023
  • Fixed an issue that caused burning from this skill to be applied multiple times per pulse to larger enemies.
November 29, 2022
  • This skill now gains additional field strike damage and burning duration when used above 100% heat, in addition to its previous effects.
October 04, 2022
  • Increased power coefficient from 0.01 to 1.0 in PvP and WvW.
February 28, 2022 End of Dragons release:
  • (Undocumented) Added tooltip fact Defiance Break.
February 25, 2020 Competitive content update:
  • (Competitive split) Reduced power coefficient from 3.0 to 0.01. Reduced cooldown from 60 seconds to 40 seconds.
May 14, 2019
  • The recharge time for this skill is now 60 seconds in all game modes.
August 28, 2018
  • The cooldown of this skill has been split between game modes. It has been increased from 60 seconds to 75 seconds in PvP only.
September 22, 2017 Path of Fire release:
  • Prime Light Beam has been added to the game.