Sorry but I would like to know what are shimmed cards? Can anyone describe and explain to me?

Shimmed stuff are stuff that you can use with your M5. I do not know if I can reveal the principle here but.. ya... Shimmed stuff is mainly for use with the M5 and similar things like that.

Sorry, I doubt anyone can or will answer your questions on what is a shimmed card. Because explaining it will actually expose several effects.

Let say its a gimmicked card, super expensive, can be briefly examined and david copperfield uses them. :)

Maybe you should buy an effect that uses shimmed card and then you know the answer to it, or you get a book and they might explain inside what is a shimmed card.

Copperfield uses shim cards? For which effect? i must have missed that one.

Shim card can also be use hand in hand with the PK ring if you know how to come out a routine for it. Just think hard and you know what are shimmed cards. :P