Why the price spike on basically the same printing? | tcgmode

I was in the process of cataloging my cards just to better get a grasp of what I have, and found the M11 print of Sign in Blood is going for $2.30, vs the M13 is at $0.48. What’s more, the Duskmourn ver (which I don’t own) is $3.40?! For the exact same art?! I don’t get it, this thing has been re...