> For the complete documentation index, see [llms.txt](https://docs.onchainheroes.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.onchainheroes.xyz/archive/weapon-mending.md).
# Weapon Mending
## Overview
[Weapons](/items-and-assets/weapons.md) have two traits that require regular maintenance: **Sharpness** and **Durability**.\
As your Hero returns from battles, these traits will gradually wear down—reducing effectiveness or rendering the weapon unusable.
Restore both traits at **The Blacksmith** using **$HERO** to keep your weapons battle-ready and maximize reward potential.
> 💡Sharpness and Durability **does not decrease** after battling **Bosses**, but drops by **2** if the Hero **dies**
> 💡 Learn more about weapons here: [Weapons](/items-and-assets/weapons.md)
***
## Weapon Mending Mechanics
Maintaining your Hero’s weapons is essential for maximizing rewards. The Blacksmith lets you sharpen and repair weapons to keep them battle-ready and effective.
Both Sharpening and Repairing cost scale with time and rarity, encouraging early and strategic mending.
| Action | Effect | Cost Formula |
| :-------------------------------------------------------------------------------: | :-----------------------------------------: | :------------------------------------------------------------------: |
|
Sharpen
| Restores weapon to MAX Sharpness | `(daysSinceS2 * weaponRarityCoefficient * 100) / (20 + daysSinceS2)` |
|
Repair
| Restores weapon to MAX Durability (if at 0) | Same as Sharpen |
> All weapons are minted at max sharpness and durability.
***
{% hint style="info" %}
#### ⚠️ Game Balance Disclaimer
As we continue balancing the game economy, some costs, formulas, and reward rates may change. Thanks for your understanding as the game evolves!
{% endhint %}