A few effects you can do with the Ultra Mental Deck AKA (Invisible Deck):
A deck of cards lies in full view on a table. Any spectator calls out any card. Upon running through the deck, performer shows that one card happens to be reversed faced down in the faced up deck. The spectator removes this card and to everyone's surprise it happens to be the very card that was called out!
Pack is fanned in front of spectator who is asked to think of any card. instantly, the spectators thought card is shown, reversed in the center of the deck!
Invisible Deck sold separately