The ability to influence or make decisions is what it means to have the upper hand. This is a crucial part of poker strategy. The best way to gain the upper hand is with marked cards, which can help you win the game more often than your opponents. Marking a deck of cards can be done in several ways, but invisible ink is the most common. This type is invisible to the naked eye, but can be seen through poker perspective lenses and sunglasses. These glasses are available online, and you can also find them at some magician shops.
Another way to mark a deck of cards is with barcode marked cards, which are also invisible to naked eyes but can be read by a poker analyzer. This card reading device will report the winning seat even if cards are spread in the middle. This device is available online or at casinos. In some countries, it is illegal to cheat with poker analyzers.
Marked cards can be used to improve your poker game and magic performance, but you must use high-quality marking devices that are compatible with the cards you are using. Online and in some magician shops, you can purchase poker analyzers or external scanning cameras. These devices are highly scalable, and can be used with a variety of accessories to expand their capabilities. They can also be hidden in various daily items, including watches, bracelets, T-shirts, car keys, and power banks.