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.

Usefulness

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 the Quick Slash Charm. This also applies to the Flukemarm fight as the combo makes quick work of her without needing to jump to reach her.

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

Grubberfly's Elegy can be useful for defeating Godmaster Icon.png Radiant difficulty bosses since the Charm's effect is never lost, as being hit results in instant death.

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

How to Acquire

Gifted by the Grubfather after freeing all 46 Grubs.

Charm Interactions and Combo Tips

Fragile Strength.png
Fragile Strength

Stacks multiplicatively with Fragile Strength, producing 75% Nail damage (rounded to nearest, even when .5) per projectile. 4/7/10/13/16 damage per Nail upgrade 0/1/2/3/4.

Fury of the Fallen.png
Fury of the Fallen

Fires red projectiles at one Mask, producing 75% Nail damage (rounded to nearest, even when .5) per projectile. Note that this works only when the Knight has only 1 Mask left (No projectiles are sent at 1 Mask if Fury of the Fallen is not equipped). This effect does not take place if the Knight has any Lifeblood Masks. 3/6/9/12/15 damage per Nail upgrade 0/1/2/3/4.

Grubsong.png
Grubsong

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

Mark of Pride.png
Mark of Pride

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

Lifeblood Heart.png
Lifeblood Heart

Grubberfly's Elegy only counts Mask health as full health, so by using Lifeblood Masks (except those gained from Joni's Blessing), taking damage no longer removes Grubberfly's Elegy's effect.

Lifeblood Core.png
Lifeblood Core

Can be used as an alternative to Lifeblood Heart with a higher Notch cost.

Hiveblood.png
Hiveblood

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

Quick Slash.png
Quick Slash

Allows the Knight to launch projectiles at a faster rate.

Heavy Blow.png
Heavy Blow

Allows projectiles to knock back enemies from greater distances.

Exclamation Mark.png
Note: Using Grubberfly's Elegy in combination with Fragile Strength/Grimm Troupe Icon.png Unbreakable Strength and Fury of the Fallen results in giving the projectile ~112.5% 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
Dashmaster.png
Dashmaster
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
Longnail.png
Longnail
Mark of Pride.png
Mark of Pride
Baldur Shell.png
Baldur Shell
Flukenest.png
Flukenest
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
Grubsong.png
Grubsong
Grubberfly's Elegy.png
Grubberfly's Elegy
Hiveblood.png
Hiveblood
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
Kingsoul.png
Kingsoul
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
Dreamshield.png
Dreamshield
Weaversong.png
Weaversong
Sprintmaster.png
Sprintmaster
Carefree Melody.png
Carefree Melody
Grimmchild.png
Grimmchild
Community content is available under CC-BY-SA unless otherwise noted.