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Lifeblood Core is a Charm in Hollow Knight. It adds 4 Lifeblood Masks when resting at a Bench.


As with Lifeblood Heart, this Charm is useful if the Knight focuses on Spells, as it allows them to use more of their SOUL on casting rather than healing. However, it is the most difficult Lifeblood Charm to obtain.

Arguably the best Lifeblood Charm, as it provides twice as many Masks as Lifeblood Heart with only one extra Notch cost, and does not turn all Masks into Lifeblood, unlike Joni's Blessing, allowing for healing if necessary. While having 9 Masks, Lifeblood Core grants the same number of Masks as Joni's Blessing.

How to Acquire

On the left wall of the Abyss is a door that only opens when having 14 or more Lifeblood Masks, or 15 or more when using Joni's Blessing. This can be reached through the Lifeblood Heart Charm and by killing Lifeseeds. Joni's Blessing also converts the extra health from Fragile Heart/Grimm Troupe Icon.png Unbreakable Heart into Lifeblood Masks. Hidden Dreams Icon.png Dreamgate can be used to warp to the door without obstacles.

The Charm is found sitting on a dais at the end of the chamber.

There is also an Arcane Egg in the same area. Once Lifeblood Core is picked up, the Knight is immediately ejected from the room and the door becomes permanently closed, so it is recommended to pick up the Arcane Egg first and then the Charm.

Charm Combo Tips

Joni's Blessing.png

Joni's Blessing
Stacks with both Joni's Blessing and Lifeblood Heart.
Lifeblood Heart.png

Lifeblood Heart
Stacks with both Joni's Blessing and Lifeblood Heart.
Grubberfly's Elegy.png

Grubberfly's Elegy
Grubberfly's Elegy only counts Mask health as full health, so by using Lifeblood health, taking damage does not remove Grubberfly's Elegy's effect.
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

Unbreakable Heart.png

Unbreakable Heart
Unbreakable Greed.png

Unbreakable Greed
Unbreakable Strength.png

Unbreakable Strength



Carefree Melody.png

Carefree Melody