You may have seen the Shapeshifter move done by David Blaine in a few of his street magic shows. It’s a really cool to reveal a card to somebody at the end of a card trick.
The Shapeshifter move is a colour change, meaning the audience is shown one card but it instantly changes into a different card. It’s a really cool illusion. I remember freaking out the first time I saw it done live.
NOTE: This is not a trick in itself. It’s a card sleight of hand technique that you can incorporate into your other card tricks to make them look cooler.
You’ll need to practice it a lot before you can confidently perform it in front of an audience. It takes time to get a feel for the exact amount of pressure to lay on the cards.