Nail

"Nail" is the term used to describe the bladed weapons wielded by several enemies, NPCs, and bosses in Hallownest, including The Knight. The Nailsmith in the City of Tears can upgrade the Knight's Nail up to 4 times if given enough Geo and Pale Ore, which will increase the damage of melee strikes.

The charms Fragile Strength/ Unbreakable Strength and Fury of the Fallen will also increase Nail damage.

Nail Arts
Nail Arts are the abilities taught to The Knight by the Nailmasters. Executing a Nail Art involves holding down ATTACK to charge, then releasing while doing an optional second input depending on the Nail Art. Nail Arts deal multiplicative damage, meaning the stronger the Knight's nail is, the stronger the Nail Art will be.

The Nailmaster's Glory charm will decrease the time needed to charge Nail Arts.

Nail Art damage is affected by Fury of the Fallen.

Nail Art damage is not affected by Fragile Strength.

Nail-bouncing
By jumping and slashing down with the nail on environment jugs, spikes or enemies, the Knight will bounce. This move knows as "Nail-bouncing" or "pogo-jumping" is useful for fighting some enemies and for platforming.

In Fungal Wastes, there are pink mushrooms on which the Knight can nail-bounce higher than usual. They must be used as a platform to access the Mantis Village and other locations. After obtaining Mantis Claw and Isma's Tear, most of them become completely useless.

Asides from these mushrooms, there are few other times where nail-bouncing is required :
 * To save a grub in Forgotten Crossroads near the Tram Station.
 * To obtains a Vessel Fragment in Deepnest by nail-bouncing on Garpedes.
 * To complete some parts of the White Palace and the Path of Pain.

Гвоздь Aiguillon 骨钉 Miecz (Nail) Aguijón