It seems that the amiibo cards are just as big as the figurines! Series 2 of Animal Crossing cards has been delayed from it's September 30 release date in Japan to a currently undisclosed date, according to a Nintendo of Japan website post translated at NeoGAF. Apparently the Series 1 cards have sold far beyond expectations, and a second wave of the Series 1 cards is coming in August. Perhaps Series 2 has been delayed so they can bulk up on more cards?