The best place to get one would be online. There are a number of websites out there that specialize in them and have many to choose from. You can also usually purchase one from leading toy stores such as Toys-R-Us. Some times the national department stores like Walmart also carry them.
Your able to get the Cyber Dragon by trading or shopping around. You may look for the Cyber Dragon starter tins for just one card or you my try your luck in buying some boosters packs or certain box sets also.
Buy the Yu-Gi-Oh packs. The Duelist Pack 4 Gold Series, Dark Revelation Volume 4, Collectors Tin Promos Series 3, Cybernetic Revolution, Mattel Action Series 3 are all packs that have the Cyber Dragon card in the cards.
