Clones by Jean-Pierre Vallarino

A new, unique version of the amazing classic, Sympathetic Cards 

From a borrowed deck, remove 10 cards that you'll use for your prediction, and isolate them in a glass covered by a silk. You'll keep them covered until the end of the routine. 

From another deck, ask a spectator to randomly select 10 cards face up and to shuf?e them thoroughly. They are placed in another glass and covered by a silk, as was done previously with your prediction. 

Now imagine... 

Without any manipulation, you remove the silks and the first card of each packet perfectly match each other! The coincidence is crazy... every single card in each glass is removed one by one by the magician or the spectator. The content of the two glasses is a perfect match! Same cards, same order. No places for coincidences, it's just impossible. 

The spectator can examine the cards, the decks... 
CLONES -- No manipulation, everything appears normal. It's truly a miracle!