Metamorphosis refers to an Illusion-element spell in ALfheim Online.


Once the incantation is completed, the spell turns the caster into a monster. The shape of the monster that the player is transformed into depends randomly on the player's combat skills. However, this spell is not popular, as the end result is usually a weak monster with no change in stats, thus it is usually not viable in actual combat.


Þeír[1] hræða[1] nótt[1] dýpt[1], renn[2] helvegr[2][† 1]


Seā urāza nōto diputo, ren herubegūru.[4]

Frighten them, depth of the night, and chase them along the roads of Hell.[5]


Instance Description
Light Novel Anime Manga
Volume 3, Chapter 4 Episode 19 Fairy Dance Manga Stage.005 Kirito used this spell to turn into a Gleam Eyes-like monster and slaughter a group of 12 Salamanders, though he left one alive at Leafa's request, near the gates to Legrue City.


  1. The anime has used the words "auga brott svalr" in the animation, however, the SAO no Subete guidebook contains a different version of the words. As the guidebook also comes with a translation and was released after the anime, it is considered to be the more up to date version.


  1. 1.0 1.1 1.2 1.3 The Words of Power highlighted during the chant in episode 19 at around 09:04.
  2. 2.0 2.1 Taken from an Icelandic dictionary based on the pronunciation and meaning of the incantation
  3. SAO no Subete
  4. Romanization of the katakana.
  5. Translation of the kanji.


Skills and Magic
Default Sword Skills
mostly common in SAO, New ALO, UW
Avalanche - Cyclone - Embracer - Explode Arrow[1] - Fell Crescent - Horizontal - Horizontal Arc - Horizontal Square - Howling Octave[2] - Lightning Fall - Linear - Meteor Break - Meteor Fall - Rage Spike - Reaver - Savage Fulcrum - Senda - Sharp Nail - Single Shot - Slant - Snake Bite - Sonic Leap - Spinning Shield - Star Splash[2] - Starburst Stream[3] - Treble Scythe - Tsumujiguruma - Tsujikaze - Vertical - Vertical Arc - Vertical Square - Vorpal Strike - Whirlwind
SAO Dual Blades - Extra Skills - Fishing - Hiding - Holy Sword - Searching - Tailoring - Tracking - Unique Skills
ALO Original Sword Skill(Mother's Rosario (OSS))
Magic Butterfly Shield - Cold resistance spell - Concealment - Earth Wall - Fireball - Fire Spear - Hit Point Buff Magic - Healing Magic - Hollow Body - Metamorphosis - Moonlight Mirror - Night Vision - Purified Surface - Sacrifice - Smokescreen - Strength Buff Magic - Vacuum Blades - Water Breathing - Wind Blades - Wind Needles
Project Alicization Sacred Arts - Incarnation - Synthesis Ritual
  1. Only in ALO.
  2. 2.0 2.1 Only in SAO and ALO
  3. Only in SAO

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