* Local game stores: Many local game stores sell Yu-Gi-Oh! cards, as well as other trading card games and gaming supplies.
* Online retailers: There are many online retailers that sell Yu-Gi-Oh! cards, such as Amazon, eBay, and TCGplayer.
* Big box stores: Some big box stores, such as Walmart and Target, also sell Yu-Gi-Oh! cards.
* Yu-Gi-Oh! official website: The Yu-Gi-Oh! official website also sells Yu-Gi-Oh! cards, as well as other merchandise.
When buying Yu-Gi-Oh! cards, it is important to make sure that you are buying from a reputable source. There are many counterfeit Yu-Gi-Oh! cards on the market, so it is important to be cautious when buying cards from online retailers or from individuals that you do not know.