First art is from Triumphant Reckoning, second seems to be promo art they have been using for a magic thing in Feb (which will be right after ONE comes out) and is indeed new. Guessing its more marketing art or Norns card art or something similar (like a command or something).
Private Mod Note
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“There are no weak Jews. I am descended from those who wrestle angels and kill giants. We were chosen by God. You were chosen by a pathetic little man who can't seem to grow a full mustache"
"You can tell how dumb someone is by how they use Mary Sue"
Does anyone know if they are indeed new artworks? If so, then the one showing Chandra and the other two planeswalkers appear to be spoilers.
(Sorry if this is the wrong section, but it's story related.)
"You can tell how dumb someone is by how they use Mary Sue"