Butterfly Shield refers to an unknown element spell in ALfheim Online.


Once the incantation is completed, a swarm of countless blue butterflies rise from the caster's raised appendage and cover the target of the spell, creating a shield barrier.[1] This shield cancels out any damage that would be dealt to the target for as long as the caster pleases or until the caster's mana points (MP) runs out. Each attack drains the caster's MP by a large amount. The caster also feels the feedback caused by any attacks that hit the shield.[2]


Single target version:
Þú[3] sér[4] lind[4] ásynja[5], burt[4] eimi[4] og[6] sverð.[7]

Multi-target version:
Þeír[4] sér[4] lind[4] ásynja[5], burt[4] eimi[4] og[6] sverð.[7]

Single target version:

Multi-target version:

Single target version:
Sū sharu rindo ashīnya, bāto eimi ōgu suverudo[10]

Multi-target version:
Seā sharu rindo ashīnya, bāto eimi ōgu suverudo[10]

Single target version:
Wrap him in a shield of goddesses, and keep away flames and irons.[11][† 1]

Multi-target version:
Wrap them in a shield of goddesses, and keep away flames and irons.[12][† 1]


Instance Description
Light Novel Anime Manga
Volume 3, Chapter 4 Episode 19 Fairy Dance Manga Stage.005 Leafa used the single-target version of the spell to block the fireball magic attack of a Salamander party that they encountered near the gates to Legrue while Kirito used the time to be able to cast his own spell.
N/A SII Episode 18 N/A Asuna used the multi-target version of the spell during the raid of the Floor Boss of the 21st Floor of New Aincrad.


  1. 1.0 1.1 Reki gave the meaning as "You are wrapped in a shield of goddesses and keep away flames and irons.", but this translation was rephrased for better English grammar and to account of the comma in the Words of Power.


  1. Episode 19
  2. Volume 3, Chapter 4
  3. The Words of Power highlighted during Leafa's chant for the spell in Episode 19.
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 The Words of Power highlighted during Asuna's chant for the spell in SII Episode 18.
  5. 5.0 5.1 Kunori's tweet about ásynja
  6. 6.0 6.1 The word in the Words of Power sphere that best matches the Japanese pronunciation.
  7. 7.0 7.1 Kunori's tweet about スヴェルド
  8. SAO no Subete
  9. SAO no Subete, with the first word being based on other multi-target spell incantations.
  10. 10.0 10.1 Romanization of the katakana.
  11. Kunori's tweet about the meaning of the spell
  12. Kunori's tweet about the meaning of the spell, accounting for the difference between Þú and Þeír


Skills and Magic
Default Sword Skills
mostly common in SAO, New ALO, UW
Avalanche - Cyclone - Deadly Sins - Embracer - Explode Arrow[1] - Fell Crescent - Flashing Penetrator - 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 - Ukifune - Vertical - Vertical Arc - Vertical Square - Vorpal Strike - Whirlwind
SAO Dual Blades - Extra Skills - Fishing - Hiding - Holy Sword - Searching - Sewing - Tracking - Unique Skills
ALO Original Sword Skill(Mother's Rosario (OSS))
Magic Butterfly Shield - Cold resistance spell - Concealment - Earth Wall - Fireball - Fire Spear - Healing Magic - Hit Point Buff Magic - Hollow Body - Ice Arrows - Metamorphosis - Moonlight Mirror - Night Vision - Purified Surface - Retrieve Arrow - Sacrifice - Searcher - Smokescreen - Strength Buff Magic - Vacuum Blades - Water Breathing - 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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