The Object Eraser (オブジェクトイレイサー, Obujekuto Ireisā?) is a Game Master (GM) tool in Sword Art Online used to remove any object in the game.


The Object Eraser can only be summoned with the use of a GM console with a GM authority account. Once summoned, crimson flames come forth, coiling out of the user's arm until it takes the form of a sword.

Appearance and AbilitiesEdit

The Object Eraser takes the form of an oversized, flaming, crimson-red greatsword with a purplish cross-guard and pommel, and a dark red grip.

Due to being a GM tool, the sword is capable of destroying any object that it is used against, even if the object is a boss monster that would be impossible to beat. Although the tool's effect is not instant, it only takes mere seconds for even the most durable objects to be destroyed. The tool may also cause the target to be engulfed in a ball of flames before being destroyed.


Aincrad ArcEdit

Morning Dew GirlEdit

After Yui accidentally made contact with the GM console in the safe room of the Hidden Dungeon, she regained her memory and summoned the Object Eraser, which she used to easily defeat the guardian of the dungeon, The Fatal Scythe, which was threatening the lives of Kirito and Asuna.


  • A two-handed sword version of the Object Eraser can be acquired in Sword Art Online: Lost Song as possible loot from the "Hunt of the Dragons" quest.


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
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