A TRULY ODD TRICK!

You introduce 7 cards and an envelope with 'ODD' instructions. The spectator follows the ODD instructions eliminating all but one card, which is a completely free choice. When that card is turned over, it is a royal card. When the envelope is turned over it states:

"YOU WILL PICK A ROYAL CARD"

The envelope is then opened and a card drops out, which MATCHES the odd card exactly.

For the finale, all of the other cards are turned over and are completely DIFFERENT.
 
Fully examinable;
Easy to do;
Full written and online instructions;
Self-working;
Made with USPCC cards
 
BONUS - You are also provided with a second envelope and stickers, in case you want to make a backup. Also, if you want to finish with six blank cards, you can just add them for an extra £2.99 in the options!
 
Reviews:
 
".. those who like this type of effect and are looking for something that is easy to do and self-working, then this is for you." 
Jamie Salinas, M-U-M Magazine
 
"Vinny Sagoo’s seven-card packet trick, ODD, became my current favorite Fall/Winter carry-around effect because it met everything on my math-based card effect checklist and then some. " 
Rolando Santos , Linking Ring Magazine
 
"ODD is a self working packet trick where your spectator does all of the work. This is an every day carry that is sure to leave people scratching their heads." 
Magic Orthodoxy
 
"This reminds me of those tricks Copperfield used to do on TV where the spectator can follow along on their screen. " 
Paul Romhany, Vanish Magazine
 
"For those of you who enjoy packet tricks.. this is a truly simple effect that has step by step instructions on your prediction envelope." 
The Magic Roadshow