(no subject)
On this game I play, people are always trying to swap card pieces for common/easily obtained stuff for rare items. WHY? Why would people swap them? Swap like for like... and look at what items cost in the shop. If it's not something paid for with diamonds, or something which is on a very high level, people aren't going to want to swap it. And quit trying to exchange decoration pieces for animal pieces because no body really wants them.