Duelist Energy Sword

From Halopedia, the Halo wiki

Duelist Energy Sword
A crop of the Duelist Energy Sword.
Production overview


Merchants of Qikost[1]


Energy sword



148.5 centimetres (58.5 in)[1]


2.4 kilograms (5.3 lb)[1]

Ammunition type:

Superheated, shaped plasma[2][3][4]

Feed system:

100 battery units[2][3]

Effective range:


Service history

In service:

Post-Covenant War conflicts[5]

Lightweight frame allows for increased agility.[6][7]

The Duelist Energy Sword is a modified variant of the Meluth'qelos-pattern energy sword.[1][6][7]


Design details[edit]

Main article: Meluth'qelos-pattern energy sword

The Duelist Energy Sword is a variant of the Meluth'qelos-pattern fireblade. It has a white hilt, and its plasma blade has a deeper blue coloration. It has a lightweight frame, allowing users to be more agile in their movement,[6][7] though not in their running speed.[8]


The Duelist Energy Sword was carried and used by Toha 'Sumai, a renowned Sangheili blademaster. The weapon was taken from 'Sumai some time prior to March 2555, when his former-student Okro 'Vagaduun assassinated the blademaster. The weapon was used by 'Sumai to defend himself from 'Vagaduun in a martial duel done as part of 'Vagaduun's initiation into the Banished, with one of Atriox's core teachings being to reject honour and all previous loyalties. Following 'Sumai's death, 'Vagaduun retrieved the Duelist Energy Sword from his former master's body and proceeded to carry it throughout his career in the Banished.[9]

During the Zeta Halo campaign in 2559-2560, 'Vagaduun used the weapon in a combat encounter with John-117, though he was defeated and ultimately killed by the Spartan.[10]

In-game information[edit]

Halo Infinite[edit]

Main article: Energy sword

In campaign, the Duelist Energy Sword is a legendary weapon awarded to the player after defeating the High Value Target, Okro 'Vagaduun. The weapon can be acquired at any Forward Operating Base, and grants the player increased movement speed,[5][7] much like the Rushdown Hammer.


List of appearances[edit]


  1. ^ a b c d Halo Encyclopedia (2022 edition), page 482
  2. ^ a b Halo Encyclopedia (2011 edition), page 349
  3. ^ a b c Halo: The Essential Visual Guide, page 63
  4. ^ Halo Waypoint, Energy Sword (Retrieved on Sep 21, 2011) [local archive] [external archive]
  5. ^ a b Halo Infinite, Duelist Energy Sword in-game weapon
  6. ^ a b c Halo Infinite, Forge - Duelist Energy Sword description: "Lightweight frame allows for increased agility."
  7. ^ a b c d Halo Support, Halo Infinite Weapon, Equipment, and Vehicle Inventory (Retrieved on May 5, 2023) [archive]
  8. ^ Halo Waypoint, Canon Fodder - Ship Strike (Retrieved on Apr 22, 2023) [archive]
  9. ^ Halo Waypoint, Canon Fodder - New Year, New Lore (Retrieved on Jan 23, 2023) [local archive] [external archive]
  10. ^ Halo Infinite, campaign mission Lockdown: Okro 'Vagaduun