Fragile Strength is a Charm in Hollow Knight. It increases Nail damage by 50%.


Fragile Strength does not affect damage from the Crystal Heart dash or the Sharp Shadow dash.

This charm is extremely powerful, at the cost of just only one more notch, it permanently provides a similar benefit to Fury of the Fallen without the risky need to be at one health. It does stack with Fury of the Fallen, providing a 162.5% damage increase when both charms are equipped and the Knight is at one health.

The obvious downside is that once broken, Leg Eater will only repair it for a price. Late-game, the Geo may not be much of an issue, but the trip will be.

This charm is quite potent, although it breaks upon death. One way to make use of the charm is to only use it in situations where death is unlikely, such as exploration, in tandem with survivability-increasing charms, while avoiding its use in boss battles, except for Dream Boss battles and Godmaster Icon.png Godhome battles (as the charm will NOT break when dying to these bosses).

Lastly, it should be noted that its drawback is negated in Steel Soul runs since the run is over upon death anyway, making Fragile Strength one of the most powerful and useful charms on a Steel Soul run.

How to Acquire

Purchased from Leg Eater in the Fungal Wastes for Geo.png600. Wearing the Defender's Crest will cause Leg Eater to lower the cost to Geo.png480.

  • Shop description:
You're weak, aren't you? You should give me Geo. If you do, I'll give you this charm I made. It will make you stronger. Your enemies, and everyone else, will fear you at last...

When broken, Leg Eater can repair it for Geo.png350, or, while wearing the Defender's Crest, for Geo.png280.

  • Shop description when broken:
It's broken now, and its power is sleeping. Very sad! Give me Geo, and I'll fix it.
Grimm Troupe Icon.png The Grimm Troupe Content

Once the Grimm Troupe has been summoned, Divine becomes accessible in Dirtmouth. To get the unbreakable version of Fragile Strength, it must be equipped before listening to her, then it must be given to her when prompted. She will eat the charm, then ask for Geo.png15000. Once the Geo is paid, she gives the unbreakable version of Fragile Strength, Unbreakable Strength.

Charm Interactions and Combo Tips

Fury of the Fallen.png
Fury of the Fallen

Stacks with Fury of the Fallen, providing a 162.5% damage increase at one health when both charms are equipped.

Grubberfly's Elegy.png
Grubberfly's Elegy

Stacks multiplicatively with Fragile Strength, producing 76% Nail damage (rounded up) per projectile. 4/7/10/13/16 damage per Nail upgrade 0/1/2/3/4.

Stalwart Shell.png
Stalwart Shell

Especially efficient in combination with Stalwart Shell, allowing the Knight to quickly dispatch a charging enemy without taking extra hits.

Quick Slash.png
Quick Slash

Especially efficient in combination with Quick Slash, allowing the Knight to quickly deal a large amount of damage.

Exclamation Mark.png
Note: The effects of the first two charms also stack, giving the projectile ~114% Nail damage.
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
Grimm Troupe Icon.png The Grimm Troupe Content

Unbreakable Heart.png
Unbreakable Heart
Unbreakable Greed.png
Unbreakable Greed
Unbreakable Strength.png
Unbreakable Strength
Carefree Melody.png
Carefree Melody
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