Effect: Four blue arrows are on the faces of four cards. You show that all of the arrows are pointing in one direction. One arrow is visibly reversed and the other three arrows change direction magically to match the reversed arrow!
You repeat this and show all the cards have regular backs and these later change to red arrows on all the cards!
As a great surprising finale a card with 8 arrows on it is revealed. You’ll have lots of fun with this one!
Note: This trick is not completely automatic but the three “sleights” involved are easy to master and you can use them in card other routines as well.