yes they can holy crap. ;A;
When I moved to Arizona in january I gave away all of my old cards, even some epic ones, to GoodWill though. Let someone else inherit them. <3 Though my little cousin took about a good amount of them for her collection.
There are some cards released ow that I want, though. Like all of the Jellicent, Gyarados, Munna, and Musharna cards, definitely want.
I think my favorite card is m Misty's Gyarados. <3