Grubberfly's Elegy

Grubberfly's Elegy
Contains the gratitude of grubs who will move to the next stage of their lives. Imbues weapons with a holy strength. When the bearer is at full health, they will fire beams of white-hot energy from their nail.
Effect	When at full Masks, Nail attacks shoot a projectile dealing 50% (rounded to the nearest whole number, or nearest even number when .5) Nail damage per hit. Damage: 2/4/6/8/10 (Nail upgrades 0/1/2/3/4)
Notch Cost

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 Radiant difficulty bosses since the Charm's effect is never lost, as being hit results in instant death anyway.

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.

Location of Grubfather in Forgotten Crossroads

Charm Synergies

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

Fury of the Fallen Fires red projectiles at one Mask, producing 75% Nail damage (rounded to the nearest whole number, or nearest even number 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). While at one Mask, gaining any Lifeblood Masks negates the effect of Grubberfly's Elegy but not the effect of Fury of the Fallen. 3/6/9/12/15 damage per Nail upgrade 0/1/2/3/4.

Charm Combo Tips

	Fragile Strength Stacks multiplicatively with Fragile Strength, producing 75% Nail damage (rounded to the nearest whole number, or nearest even number when .5) per projectile. 4/7/10/13/16 damage per Nail upgrade 0/1/2/3/4.
	Mark of Pride Increases the size of the projectiles from Grubberfly's Elegy.
	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 Can be used as an alternative to Lifeblood Heart with a higher Notch cost.
	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 Allows the Knight to launch projectiles at a faster rate.
	Heavy Blow Allows projectiles to knock back enemies from greater distances.

Note: Using Grubberfly's Elegy in combination with Fragile Strength/ 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.