I have Black Butler cards, but I have been dying to get my hands on Hetalia ones. My kegemaran in the Black Butler ones are Grell, who is the Jack, and Lady Ciel, who is the Queen.
Hmm, I haven't really been into collecting cards lately, so I don't even know which series has cards! However I used to collect Inuyasha cards. I really wanted Sango but never got her.