Hi...I recently purchased a booster pack of First Edition Team Rocket and found I had a Holo,Rare...Dark Raichu. It also read that it was card 83/82. I found out this card is not part of this deck. How do I find out the market value of this card? I would appreciate any help you can give me.....
 
Thank you....

Well, right now the market value is fluxuating all over on this card.  Since it was never printed in Japanese and does not have a non-holo counterpart, I would suspect it to be the most valuable card in the set, just over Charizard and Here Comes Team Rocket.  It's exact value, though, I can not say for certain.

Scott