Typically, for odd-sized cards or promo cards, Wizards of the Coast does not issue white-backed artist proofs. Therefore, I did not expect to receive any for the double-sided flip card Grizzled Outcasts / Krallenhorde Wantons. So I was surprised to see that they did indeed issue them--as two separate white-backed cards!
Therefore I've linked up the cards here. As usual, you can add a drawing to the back of any card(s) you order for a few bucks more, if you're willing to wait about a month to receive them.
4 hours ago