Specifications Card of different type (Yu-Gi-Oh, Magic, Pokemen) Average size : 63 x 88 (may be waried for some mm) Average thickness : 0.2 to 0.35 Card in dispenser : 500 to 1000 (total height about 30cm to 60cm) Cycle time : 1 to 2s max Number of type : 10 equal to 10 ouput bins Mechanics : Lego Electronic : market (Nema Step Motor, blue tiny 9G servo, Rasberry Camera, wire and software by the customer) 3D printed parts for attaching the elements to lego Estimation of hours of work 150h composed of 50h for searching ideas, primary building, proof of concept, validation and quotation + 100h for finely developing, building, ordering, final building, check specs, and shipping Development The first idea was to develop a machine with the card dispenser, camera on the top, and a moving tray which grabs the card and put in the correct bins

If the holos sheet looks similar, this may partially explain the high variance in the observed pull rates (a random run of 12 holos from the sheet is more likely to contain duplicates and thus impact the observed statistics more)
Flash and Flying bring memories of very powerful cards ( Snapcaster Mage , Vendilion Clique )
While you cannot get them from Target anymore, there are still plenty of outlets in the U.S