Post by Kuroi Kenshi on Feb 2, 2008 8:47:06 GMT -5
OK, I'll try and reply strictly on memory from the Japanese version as I am not in front of the game. There is a versus mode where you can play other players and/or AI. In this mode, both players will have the option to trade cards with one another. You may only receive cards which you do not have yet, and only 1 max of each of these cards. You may also only trade 4 cards at a time. You may do this numerous times though, so there is no max to how many cards can be traded over a period of time.