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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