I thought this might be a useful topic for the DS section since it's even harder to get all the cards you need on the DS than it is on Saga. Use this topic to post and/or rant about those annoying card(s) that are just refusing to show their faces for you on the DS.
As for me, the cards that have been eluding me are Polestar and Aports.
oddly enough Aports was one of the first Rares I unlocked in my game. But almost 7600 total cards in I've been unable to find more than 3.
well, back to farming for me.
EDIT 7-21-11 1710 hours:
I finally found the last copy of Aports to complete my farming! It took me collecting a grand total of 8,482 cards before I found 4 copies of each non-E card.
While the last couple of cards proved stubborn to get, others were more than easy to find; at this point my most common cards are:
most common N cards: Giant Eel and Wall of Stone (51 each)
most common S card: Mothman (33)
Most common R card: Wild Growth (22)