How to fly out lethal playing cards?

Preparation materials: rectangular cards.

1. Prepare a card first, then hold the card with your left hand, and then stick the index finger of your right hand on the upper right corner of the card, as shown in the figure.

2. Then pinch the lower right corner of the card with the thumb and ring finger of the right hand, as shown in the figure.

3. After the draw, bend your wrist, as shown in the figure.

4. Slant to 45 degrees and quickly throw the cards in your hand, as shown in the figure.