MEGA CHANGE (No Gimmick) by Joseph B

No Gimmick! REGULAR cards!
An incredible effect that will amaze also fellow magicians!
The magician shows four kings of hearts with red backs. Magically they all turn face down and change to four nines of spades. Yet another change in four jokers and finally the backs of the cards all turn blue.

NO DOUBLE BACKS
NO DOUBLE FACES
NO GIMMICK
NO GLUE
NO WAX
NO STICKY STUFF