Pokemon is a widely counterfeited product line as there is not much protection for intellectual properties such as Pokemon and Yu Gi Oh, or other products, found in China where most of these knock offs are manufactured. Fortunately for Yu Gi Oh and Magic, aside from the cards, there is little demand for ancillary products so neither offers much incentive for counterfeiters. Due to the widespread popularity of Pokemon, however, there is a lot of potential profit in making knockoff Pokemon products and, once they get into the US, the source is very hard to track down. Also unfortunately, one of the prime sources of knock off Pokemon products, Amazon, shows very little interest in policing its sellers. Unless Amazon gets a direct complaint from a manufacturer regarding a counterfeit product, the company will not take action.