Grubsong is a Charm in Hollow Knight. It causes the Knight to gain 15 SOUL when taking damage.

Usefulness

A useful charm at the cost of only one notch as it provides a good amount of SOUL meter to use as healing in compensation for taking damage. The SOUL provided per hit is not enough for a heal on its own but combined with the SOUL gathered by striking enemies, or with other charms that help gather SOUL faster, this charm becomes incredibly useful for a Spell-focused build.

It also shines in difficult platforming areas where enemies are not readily available for gathering SOUL.

How to Acquire

Gifted by the Grubfather after 10 Grubs have been freed.

Charm Interactions and Combo Tips

Hiveblood.png
Hiveblood

In combination with Hiveblood it allows for regenerating SOUL infinitely, albeit slowly, by jumping into hazards or enemies, retreating, waiting for health to regenerate, then repeating.

Deep Focus.png
Deep Focus

Combined with Deep Focus or Hiveblood, it greatly helps to tackle difficult platforming challenges, especially the White Palace.

Grubberfly's Elegy.png
Grubberfly's Elegy

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

Weaversong.png
Weaversong

When used in combination with Weaversong, the Weaverlings will collect 3 SOUL upon striking an enemy, and can even gather SOUL from enemies that normally would give none from Nail hits (such as Siblings or the Collector). SOUL can be collected even after death, before the screen transition, allowing the Knight to wake up on a Bench with SOUL.

Trivia

  • The amount of mask damage taken in one hit will not impact the amount of SOUL gained, as it will always grant 15 SOUL (25 with Grubberfly's Elegy).
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
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