Hollow Knight · Weapon upgrade
Nail upgrades
The Nail is the Knight’s bladed weapon. The Nailsmith can upgrade it up to four times, with each upgrade adding damage when given enough Geo and Pale Ore.
How it works
The supplied Nail passage establishes the general upgrade track and its materials, but does not identify individual forms, damage values, costs, or tier-specific effects. Nail-bouncing—striking downward while jumping on enemies, spikes, or some environmental objects—can also help with combat and platforming.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.