Ultimate Brainwave Deck (Red) by JT

Ultimate Brainwave Deck is the ultimate solution of the 'Brainwave' plot created by JT Magic.

The Brainwave Deck is a gimmicked deck created by Dai Vernon, similar to the Invisible Deck but with an added twist. When the deck is spread face-down, the named card is the only one face-up. As a second surprise, this card is turned face-down to reveal that its back colour is different from the rest of the deck, proving that the magician knew what the spectator would say in advance and didn't just secretly flip the card.

Dai Vernon introduced the Brainwave Deck in The Jinx No. 49, October 1938, on page 341, and later marketed it in November 1938 using the rough and smooth principle. Vernon credits Paul Fox for the red/blue idea in 1932.

The effect is amazing: The spectator names any card, and its back colour is different from the entire deck. Direct and clean, the effect is exactly as described.