How can one tell the difference between 1st and 2nd editions? Any help would be appreciated. Thanks

1st editions will actually say "1st Edition" in the bottom corner. They stopped "editions" all together starting with Marvel Knights though, so new cards are all "1st edition" (there are no more re-runs of the sets).

I hope this answers your questions!

Thanks for the help. It was right there in front of my face and i didn't even see it. Thanks again.

I doubt there is any 2nd ED, they are called unlimited ed if I am not wrong.