I don't have Nightmare. I'm relatively new to Magic, I started on return to ravnica block, so most of the cards I give away will be that recent. M14 and Theros are included in my give away. I also have some from the original ravnica block that I got from a friend, and other cards I have received from Listia.
Hey you commented on my post and I just wanted to say thanks for the tips. I'm hoping to get rid of quite of a bit of cards this way & there seems to be a decent mtg fan base on listia. Thanks again! :)