Grubberfly's Elegy is a Charm in Hollow Knight. When at full masks, it causes Nail strikes to shoot a projectile which deals 50% Nail damage per hit.


This charm is useful for completing the Delicate Flower quest as it allows for fighting from a distance and detonating the explosive bubbles found in Fog Canyon.

It can be used for exploring areas and switched out for another charm when fighting bosses. However, during the fight with the Radiance, the beams of Grubberfly's Elegy can deal damage to the boss without the need to jump, which can be a viable source of damage when combined with Quick Slash. This also applies to the Flukemarm fight as the combo will make quick work of her without the need to jump in order to reach her.

The range of the projectiles is not affected by either Longnail nor Mark of Pride, though their width will be increased with the latter.

Grubberfly's Elegy can be useful for defeating Godmaster Icon.png Radiant difficulty Bosses since there will be no loss of the Charm's effect, as being hit results in instant death.

When used with Joni's Blessing, taking damage of any kind will halt the effects of Grubberfly's Elegy until resting on a bench, even if the health is restored by Hiveblood.

How to Acquire

Gifted by Grubfather after freeing all 46 Grubs.

Charm Interactions and Combo Tips

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Fragile Strength

Stacks multiplicatively with Fragile Strength, producing 76% Nail damage (rounded up) per projectile. 4/7/10/13/16 damage per Nail upgrade 0/1/2/3/4.

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Fury of the Fallen

Fires red projectiles at one health, producing 70% Nail damage (rounded down) per projectile at one health. Note that this works only when the Knight has only 1 mask left (No projectiles will be sent at 1 mask if Fury of the Fallen is not equipped). This effect will not take place if the Knight has any lifeblood. 3/6/9/12/15 damage per Nail upgrade 0/1/2/3/4.


When used in combination with Grubsong, the amount of SOUL received from taking damage is increased by 10 (to 25 SOUL).

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Mark of Pride

Increases the size of the projectiles from Grubberfly's Elegy.

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Lifeblood Core

Grubberfly's Elegy only counts mask health as full health, so by using Lifeblood health (except those gained from Joni's Blessing), taking damage will not remove Grubberfly's Elegy's effect. Lifeblood Heart can also be used as an alternative with a lower charm notch cost.


Taking damage and then regenerating it with Hiveblood will restore Grubberfly's Elegy's effect. However, this will not work in combination with Joni's Blessing.

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Quick Slash

Allows the Knight to launch projectiles at a faster rate.

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Heavy Blow

Allows projectiles to knock back enemies from greater distances.

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Note: Using Grubberfly's Elegy in combination with Fragile Strength and Fury of the Fallen results in giving the projectile ~114% Nail damage. 6/10/15/20/24 damage per Nail upgrade 0/1/2/3/4.
Charm Compendium

Main Game

Wayward Compass.png
Wayward Compass
Gathering Swarm.png
Gathering Swarm
Stalwart Shell.png
Stalwart Shell
Soul Catcher.png
Soul Catcher
Shaman Stone.png
Shaman Stone
Soul Eater.png
Soul Eater
Thorns of Agony.png
Thorns of Agony
Fury of the Fallen.png
Fury of the Fallen
Fragile Heart.png
Fragile Heart
Fragile Greed.png
Fragile Greed
Fragile Strength.png
Fragile Strength
Spell Twister.png
Spell Twister
Steady Body.png
Steady Body
Heavy Blow.png
Heavy Blow
Quick Slash.png
Quick Slash
Mark of Pride.png
Mark of Pride
Baldur Shell.png
Baldur Shell
Defender's Crest.png
Defender's Crest
Glowing Womb.png
Glowing Womb
Quick Focus.png
Quick Focus
Deep Focus.png
Deep Focus
Lifeblood Heart.png
Lifeblood Heart
Lifeblood Core.png
Lifeblood Core
Joni's Blessing.png
Joni's Blessing
Grubberfly's Elegy.png
Grubberfly's Elegy
Spore Shroom.png
Spore Shroom
Sharp Shadow.png
Sharp Shadow
Shape of Unn.png
Shape of Unn
Nailmaster's Glory.png
Nailmaster's Glory
Dream Wielder.png
Dream Wielder
Void Heart.png
Void Heart
Grimm Troupe Icon.png The Grimm Troupe Content

Unbreakable Heart.png
Unbreakable Heart
Unbreakable Greed.png
Unbreakable Greed
Unbreakable Strength.png
Unbreakable Strength
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Carefree Melody
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