This is more than an open prediction. This is two open predictions where all the work happens in your spectator’s hands, requires minimal sleight of hand, and if that wasn’t enough, they shuffle the deck at the very beginning of the effect. You’re about to perform your new closer when you play Both Sides Against The Middle by Dan Harlan.
Here’s what happens:
The audience is given a deck of cards to shuffle and examine before the trick begins while they openly place a prediction on the table. The magician then hands the spectator the deck to shuffle