«Elucidator» (エリュシデータ, Eryushidēta?) is Kirito's primary weapon in Sword Art Online. This sword is a demonic monster drop from a boss on the 50th Floor[1] that Kirito wields along with «Dark Repulser». It was boosted to +45[2] by Lisbeth out of a maximum of 50.


Elucidator is a pitch black sword with trims of gray and is evenly balanced and quite powerful. It has a black hilt connected to a hand guard that drops down on the right side. Attached to this elongated area of the hand-guard is part of Elucidator's blade so as to better aid the user in retaining their grip on the sword when it is being used. The blade is completely black like the rest of the sword and the said blade is outlined in a light gray. In the design art by the illustrator of the novels, a small cross is emblazoned on the flat of the blade, just beneath the tip.

As the Night Sky Sword was requested to be the same length as the Elucidator, this sword is less than 120 centimeters long.[3]



ELUCIDATOR +0[citation needed]
Long Sword / One Hand[4]

  • Range: Short[4]
  • Type: Slash[4]
  • Attack: 700-710[4]
  • Durability: 1350[4]
  • Weight: 170[4]
  • Requires: 61[4]
  • Equip +50[4]
  • Agility +28[4]
  • Strength +48[4]
  • Armor[4]


Aincrad ArcEdit

Warmth of the HeartEdit

Elucidator was first introduced when Lisbeth checked its name, to find it was not a player made weapon but a boss drop, and Kirito requested a blade of equal quality, hence the Dark Repulser. It was then used to test the strength of Lisbeth's best sword, which broke upon striking Elucidator, which meant this was quite a strong weapon and Kirito has used it quite often.

Sound of Water, Sound of HammerEdit

In this Side Story, Lisbeth successfully upgrades Elucidator to +40.


  • Kirito did not have enough STR to equip this sword immediately after obtaining it.[5]
  • Elucidator was among the items that Kirito inherited in ALfheim Online from his Sword Art Online save data,[6] due to the two games having an identical save format.[7] However, as all the items were corrupted and could have been detected by the system's error detection protocol, Kirito deleted all of them.[7]
  • Kirito chose the length of the Night Sky Sword in the Alicization Arc to be the same as the length of the Elucidator.


  1. Volume 10, Chapter 4, Part 3
  2. Material Edition 16
  3. Volume 9, Chapter 1, Part 6
  4. 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 Elucidator's appraisal window in Episode 7.
  6. The presence of MHCP001 among Kirito's items suggests that the save data was recent.
  7. 7.0 7.1 Volume 3, Chapter 2


SAO Weapons Anneal Blade - Dark Repulser - Ebon Dagger - Elucidator - Guilty Thorn - Karakurenai - Lambent Light - Liberator - Mate Chopper - Stout Brand - Sword Breaker - Throwing Pick - Tyrant Dragon - Wind Fleuret
Argyro's Sheet - Blackwyrm Coat - Coat of Midnight - Cor - Crystal Bottle of Kales'Oh - Crystallite Ingot - Crystals - Divine Stone of Returning Soul - Dusk Lizard Hide - Eternal Storage Trinket - Hand Mirror - Mighty Strap of Leather - Mirage Sphere - Pneuma Flower - Potions - Ragout Rabbit's Meat - Ring of Agility - Ring of Angel's Whisper - Scavenge Toad Meat - Tremble Shortcake - Vendor's Carpet - Yui's Heart
ALO Black Iron Great Sword - Blue Long Sword - Crest of Yggdrasil - Demonic Sword Gram - Holy Sword Excalibur - Lightning Hammer Mjölnir - Long Sword - Sap of the World Tree - Yrd
GGO Accuracy International L115A3 - Credit - Defense Field - FN Five-Seven - GE M134 Minigun - Kagemitsu G4 - Metamaterial Optical Camouflage Mantle - PGM Ultima Ratio Hecate II - Plasma Grenade - Procyon SL - Satellite Scan Terminal - Starship Metal Estoc - Type 54 "Black Star"
Project Alicization Black Lily Sword - Blue Rose Sword - Conflagrant Flame Bow - Divine Object - Dragon Bone Axe - Fragrant Olive Sword - Frost Scale Whip - Gigas Cedar - Goblin Sword - Heaven Piercing Sword - Night Sky Sword - Silvery Eternity - Time Piercing Sword - Twin Edged Wings

Start a Discussion Discussions about Elucidator

  • Power of the Elucidator

    51 messages
    • Im late to this conversation. Magic did not exist in SAO, Magic items however did. Such as magic or cursed weapons/accessories. This was sta...
    • And volume 2 of the same Progressive series states that even the so-called "magic" items are technically not on the level of actual magic.
  • Misconceptions about the Elucidator

    2 messages
    • So one of the things I noticed about the Elucidator is the critical distinction in how it is used in SAO as opposed to real life - you all k...
    • I saw that most of the time the sword was wielded with the guard facing outwards, even the guard was facing the left (if you see it from beh...

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