Radiant Arc

This article is about holosmith version. For the skill variant available with Weaponmaster Training, see Radiant Arc (non-holosmith).

Leap to your target and create an arc of light that strikes nearby foes. Gain quickness based on your heat level. — In-game description

Radiant Arc

Profession

Engineer (skill list)

Specialization

Holosmith

Weapon

Main hand sword

Movement

Leap

Game link

API

40160

“

0.75¾  

12

14

 

Radiant Arc

Leap to your target and create an arc of light that strikes nearby foes. Gain quickness based on your heat level.

 Damage: 917 (2.5)^?

 Damage: 605 (1.65)^?

 Quickness at or below 50% heat (2s): Skills and actions are faster.

 Quickness at or below 50% heat (1s): Skills and actions are faster.

 Quickness over 50% heat (4s): Skills and actions are faster.

 Quickness over 50% heat (2s): Skills and actions are faster.

 Cripple (4s): -50% Movement Speed

 Number of Targets: 5

 Radius: 240

 Combo Finisher: Leap

 Range: 450

— In-game description

Related traits

Firearms

• Modified Ammunition — Deal increased strike damage for each condition on a foe.

Alchemy

• Compounding Chemicals — Heal yourself when you grant yourself a boon. Remove a condition from yourself when you use an elixir skill. Gain increased concentration.
• Chain Reactivity — Gain barrier when you successfully finish a combo field with a leap or a blast. Every third successful finish grants you might and a larger barrier that is shared with allies.

Holosmith

• Enhanced Capacity Storage Unit — Increases maximum heat capacity. While above 100% heat, periodically gain might. Some skills and traits gain additional heat tiers.

Mechanist

• Mech Fighter — New combat subroutines enable your mech to use Rocket Punch when you activate Skill 3 on your equipped weapon. Your mech gains a greater percentage of your own toughness and vitality stats.

Version history

For a detailed skill history, see here.

Patch	Changes
April 14, 2026	Increased the power coefficient from 1.5 to 1.65 in PvP and WvW.
May 21, 2024	Fixed an issue that caused some players to use the engineer version of certain sword weapon skills instead of the holosmith version, even when the holosmith elite specialization was equipped.
March 19, 2024	Reduced the cooldown from 14 seconds to 12 seconds in PvE only. Increased the power coefficient from 1.8 to 2.5 in PvE only.
August 23, 2022	(PvE only) Damage multiplier increased from 1.5 to 1.8.
February 25, 2020	Competitive content update: (Competitive split) Reduced base quickness duration from 2 seconds to 1 second. Reduced bonus quickness duration per 50% heat from 2 seconds to 1 second.
November 07, 2017	Reduced casting time by 0.1 second. Reduced aftercast by 0.1 second.
September 22, 2017	Path of Fire release: Radiant Arc has been added to the game.