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


Fragile Strength does not affect damage from Nail Arts or the Sharp Shadow, Dreamshield, and Thorns of Agony Charms.

It is an extremely powerful Charm. It permanently provides a similar benefit to Fury of the Fallen without needing to be at one Mask, costing only one more Notch. A combination of both Fury of the Fallen and Fragile Strength provides a 162.5% damage increase when the Knight is at one Mask.

The downside is that once broken, Leg Eater only repairs it for a price. In the late-game, the cost may not be much of an issue, but the trip to Leg Eater might be. Dreamgate can be used to reach Leg Eater more easily.

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, or in tandem with survivability-increasing Charms, while also avoiding its use in boss battles, except for Dream Boss battles and Godmaster Icon.png Godhome battles (as the Charm does not break when dying to these bosses).

Lastly, 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 in a Steel Soul run.

How to Acquire

Purchased from Leg Eater in the Fungal Wastes for Geo.png600. Wearing the Defender's Crest Charm causes 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.

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 eats the Charm, then asks for Geo.png15000. Once the Geo is paid, she gives the unbreakable version of Fragile Strength, Unbreakable Strength.

Charm 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 Mask when both Charms are equipped.

Grubberfly's Elegy.png
Grubberfly's Elegy

Stacks multiplicatively with Fragile Strength, producing 75% Nail damage (rounded to the nearest whole number, or nearest even number when .5) 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 ~112.5% 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

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