I have a question about using older cards which have received reprints, lets say from the Base Set. I've been acquiring a few reprinted old cards, and I noticed that the back of the base set cards seem to be a different tint than the newer sets, the blue color is much darker. I looked it up on a different website, and they say this is normal.
I have yet to play competitively so I'm not exactly sure how it'll work, but my concern is that using older cards such as these with a darker background on the back can give away or at least give a strong hint as to which cards you're about to draw or which cards are prize cards etc?