# Upgrading & Trading (Collect2Earn)

## Overview

If you are a huge NFT and trading degenerate, Arcaden provides earning opportunities for you too!

You can purchase NFTs from Third Party Marketplaces like OKX NFT Marketplace or Opensea.io, and bring them to the NFT Vault on Arcaden to forge, upgrade and even level them.

The rule of thumb on Arcaden is that rarer weapons provide more CP (Combat Points), and the higher your CP, the more rewards you would earn.

Focus on trading and upgrading better, strong weapons and sell them at a premium to hardcore grinders of Arcaden!

<figure><img src="/files/L2dYNP6rHYSiXKTannfH" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/oOWZ8fYhBqezQgDSk8I8" alt=""><figcaption></figcaption></figure>

## Requirements

Forging, upgrading and levelling weapons require both Weapon NFTs and Material NFTs, as well as  Shards and pCredits.

While you need to have an Arcaden account, you are not required to own any character avatars in order to access the NFT Hub to do the above actions.

You will also need an account on whichever marketplace you use in order to execute trades.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://whitepaper.arcaden.com/world-of-arcaden/main-game-play-and-earning-mechanics/upgrading-and-trading-collect2earn.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.