|A traditional weapon of Hallownest. Its blade is blunt with age and wear.||Default weapon||5|
|A traditional weapon of Hallownest, restored to lethal form.||250||9|
|A cleft weapon of Hallownest. The blade is exquisitly sic balanced.||800 + 1 Pale Ore||13|
|A powerful weapon of Hallownest, refined beyond all others.||2000 + 2 Pale Ore||17|
|The ultimate weapon of Hallownest. Crafted to perfection, this ancient nail reveals its true form.||4000 + 3 Pale Ore||21|
By jumping and slashing down with the Nail on environment jugs, spikes, or enemies, the Knight can bounce. This move, known as "Nail-bouncing" or "pogo-jumping", is useful for fighting enemies and platforming.
In the Fungal Wastes, there are purple mushrooms which the Knight can Nail-bounce on to bounce higher than usual. They must be used as a platform to access the Mantis Village and other locations before obtaining the Mantis Claw, Monarch Wings, or Isma's Tear.
Aside from these mushrooms, there are a few other times where Nail-bouncing is required:
- To obtain a Vessel Fragment in Deepnest by Nail-bouncing on Garpedes.
- To complete some parts of the White Palace and the Path of Pain.
- Upgrading the Nail does not change its appearance in the Knight's sprites.