There are many unique skins available for a variety of weapons in Counter-Strike: Global Offensive, but the Karambit Marble Fade is one of the most difficult, and most sought after, cosmetics to obtain. This skin can be purchased from other players via the Steam market, but it's very expensive, ranging from around $900 to over $2,000 depending on the seller and how worn the item is. Players also have the option of trading with others for the Karambit Marble Fade, but they will likely need to have something of equal or higher value to offer.
Instead of buying or trading for the knife, players can try their luck with specific cases to get the Karambit Marble Fade. Cases can be obtained randomly at the end of a match or purchased for varying prices. Although some money will still need to be spent, buying a case is much cheaper than purchasing a specific rare skin. The downside is that players may need to buy and open many cases before they get the skin they want to use in Counter-Strike: Global Offensive.
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The Karambit Marble Fade appears in the Chroma, Chroma 2, and Chroma 3 cases. To open the case, players will also need the specific key that goes with it. Keys also vary in price in the Steam market, but they can be purchased in-game for $2.49 if available. Each Chroma case has its own key, so players should be sure they purchase the correct one. Using the key will open the crate and give players one of many possible prizes, and the Karambit Marble Fade may be awarded if it stops on the rare special item icon.
There's more than one way to obtain a Chroma case and try for a Karambit Marble Fade. The easiest way is to earn one for free randomly
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