> For the complete documentation index, see [llms.txt](https://about.petopiagame.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://about.petopiagame.io/the-game/heroes/hero-upgrade.md).

# Hero Upgrade

Your hero's strength is defined by key stats that grow through upgrades or equipped items. Each stat plays a critical role in enhancing your hero's capabilities:

| **Stat**                | **Description**                                 |
| ----------------------- | ----------------------------------------------- |
| **Attack (ATK)**        | Increases the damage dealt to enemies.          |
| **Health (HP)**         | Determines the hero's survivability.            |
| **Defense (DEF)**       | Reduces the damage taken from attacks.          |
| **Evasion (EVADE)**     | Increases the chance to dodge attacks.          |
| **Critical Rate**       | Enhances the likelihood of critical hits.       |
| **Critical Damage**     | Amplifies the damage dealt by critical hits.    |
| **Movement Speed**      | Improves the hero's mobility in combat.         |
| **Attack Speed**        | Speeds up the rate of attacks.                  |
| **Health Regeneration** | Restores health over time.                      |
| **Skill Cooldown**      | Reduces the time required to reuse skills.      |
| **Life Steal**          | Restores health when dealing damage to enemies. |

Upgrade strategically to unleash the full potential of your hero and dominate the dungeon!