This is pretty interesting, Juushinden: Ultimate Beast Battlers, a collectible card game for the Nintendo DS (it comes with a card reader as well) is back in the bargain bin at Play-Asia. Price tag? USD 19.90, down from the original price of USD 64.90. Click here for details.
If you are looking for booster packs, Play-Asia has them as well. The Volume 3 Booster Packs are selling at a discounted price of USD 1.29. Click here for details.