Visitors to the Tokyo Dome on February 3rd and 4th can get rare exclusive promo cards (Visitor Exclusive Commemorative Cards).

On the 3rd you get “Dark Magician”

On the 4th you get “Blue-Eyes White Dragon”

Together they form a picture of the Tokyo Dome.

Also, there’s unrevealed secret items and rare cards that will be given to visitors as part of a lottery prize.

Source: Konami’s Official Website