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Lifeblood Core is a Charm in Hollow Knight. It adds 4 Lifeblood masks when resting.

Usefulness

As with Lifeblood Heart, this charm is useful if the player has a playstyle focused on Spells, as it will allow them to use more of their SOUL on casting rather than healing.

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.

However, it is the most difficult to obtain, requiring either Lifeblood masks from the Lifeblood Cocoons scattered throughout the area (which will disappear upon resting at a Bench to be collected and/or aforementioned Lifeblood charms to be used to unlock the door. The most reliable method is to acquire 7 or more health through collecting Mask Shards, and then equipping Fragile/Unbreakable Heart, Lifeblood Heart and Joni's Blessing to reach 15 Lifeblood masks. Then the door still has to be reached without taking any damage.

How to Acquire

On the left wall of the Abyss is a cave that will only open when having 15 or more Lifeblood masks, either through killing Lifeseeds or through the Lifeblood Heart and Joni's Blessing charms. Joni's Blessing also converts the extra health from Fragile Heart into Lifeblood masks. 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 will be immediately ejected from the room and the door will become permanently closed, so it is recommended to pick up the Arcane Egg first and then the charm.

Charm Interactions

Joni's Blessing
Joni's Blessing

Stacks with both Lifeblood Heart and Lifeblood Core.

Lifeblood Heart
Lifeblood Heart

Stacks with both Joni's Blessing and Lifeblood Core.

Grubberfly's Elegy
Grubberfly's Elegy

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

Charm Compendium

Main Game


Wayward Compass
Wayward Compass
Gathering Swarm
Gathering Swarm
Stalwart Shell
Stalwart Shell
Soul Catcher
Soul Catcher
Shaman Stone
Shaman Stone
Soul Eater
Soul Eater
Dashmaster
Dashmaster
Thorns of Agony
Thorns of Agony
Fury of the Fallen
Fury of the Fallen
Fragile Heart
Fragile Heart
Fragile Greed
Fragile Greed
Fragile Strength
Fragile Strength
Spell Twister
Spell Twister
Steady Body
Steady Body
Heavy Blow
Heavy Blow
Quick Slash
Quick Slash
Longnail
Longnail
Mark of Pride
Mark of Pride
Baldur Shell
Baldur Shell
Flukenest
Flukenest
Defender's Crest
Defender's Crest
Glowing Womb
Glowing Womb
Quick Focus
Quick Focus
Deep Focus
Deep Focus
Lifeblood Heart
Lifeblood Heart
Lifeblood Core
Lifeblood Core
Joni's Blessing
Joni's Blessing
Grubsong
Grubsong
Grubberfly's Elegy
Grubberfly's Elegy
Hiveblood
Hiveblood
Spore Shroom
Spore Shroom
Sharp Shadow
Sharp Shadow
Shape of Unn
Shape of Unn
Nailmaster's Glory
Nailmaster's Glory
Dream Wielder
Dream Wielder
Kingsoul
Kingsoul
Void Heart
Void Heart
Grimm Troupe Icon The Grimm Troupe Content

Unbreakable Heart
Unbreakable Heart
Unbreakable Greed
Unbreakable Greed
Unbreakable Strength
Unbreakable Strength
Dreamshield
Dreamshield
Weaversong
Weaversong
Sprintmaster
Sprintmaster
Carefree Melody
Carefree Melody
Grimmchild
Grimmchild
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