Bought that of ebay just for you

Step 1: Get two friends to help you out with this
Step 2: Put a card on the Market for a silly price, I.e., to test it out, try a bronze card and put it on the market at 5,000 BIN.
Step 3: Get one friend to make a trade offer for that card make sure the coins are less than the BIN price.
Step 4: Once you have received the offer get your other friend to get ready to accept the BIN price.
Step 5: You accept the trade offer at the same time as your friend buys it now, (This has to be perfectly timed!)
Step 6: If perfectly timed then you should have double the coins that you put him up for and your friends should both have a copy of that card even though only one was put on the trade market.
Step 7: Repeat the process with higher rated cards the more confident you and your friends get at doing it. You should get double the coins each time, (which is the coin hack), along with two of the same card, (duplication glitch).

This glitch has been proven to work although it is very hard.

As stated in an ealier post it has to be timed to perfection, a second out just won't do.

I have tried this with several players and yesterday I finally got it to work, to bad it was with a crap bronze. Later on I tried it again with a decent card and It failed. :cry:

really hard i got it to work after 4 times