These are Japanese promo cards and unique or special sets.
* Japanese Promos Set 1 :
Download Here * Japanese Promos Set 2 :
Download Here To install new card sets into OCTGN software, what you need to do is while the OCTGN client software is open, click on the 'GAME' button. Go down the menu to 'Database' and choose 'Load New Cards....'. After you extract the files from the card sets, there should be a text file in the folder, this is the text file which you must open after you choose to 'Load New Cards...'. You will be prompted about adding the cards, just click yes and the cards will be added to OCTGN.