To trade cards on the Immutable X Marketplace, you’ll need to own a wallet, and have that wallet linked from Gods Unchained to Immutable X. This is because the Marketplace trades using Ether (ETH), the official currency of the Ethereum network. This isn’t a Gods Unchained exclusive currency, it’s an international currency that can be used to buy all sorts of things. It can also be converted into your own regional currency whenever you like. The other benefit of having a wallet is that it’s a secure place to store all your in-game assets that have been minted to the blockchain. Check out this blog for instructions on how to set up a wallet and get started.