Trading star cards on eBay requires the following steps:

1. Registration and verification: First, you need to register an account on eBay and verify your identity. After verification, you can start creating your own product page, upload photos of star cards and describe the details of the card.

2. Set the price and transaction method: When creating a product page, you need to set the price of the star card and the transaction method (such as auction or fixed price). If you choose the auction method, you also need to set the start and end time of the auction.

3. Publish the product: After setting the price and transaction method, you can publish the product and display the information of the star card on the eBay platform.

4. Wait for buyers: Once your product is successfully published, eBay will display your product on its platform, waiting for interested buyers to view and purchase.

5. Buyer places an order: If someone is interested in your star card and decides to buy it, they can submit an order on the product page. Once the order is submitted, you need to confirm the transaction and choose the appropriate logistics method to send the card to the buyer.

6. Transaction completed: Once the buyer receives the card and confirms receipt, the transaction is complete. You can confirm the transaction on the eBay platform and receive the payment from the buyer.

The specific operation video recommendation can be watched on the Value Circle app. It should be noted that when trading star cards on eBay, it is recommended to abide by eBay's usage rules and policies to ensure the legality and security of the transaction. In addition, if possible, try to choose a reputable buyer to trade with to reduce transaction risks.