This might just be a glitch with evolving into Cairne, but when I was playing evolve devolve shaman in wild I elvolved into a Cairne bloodhoof and when his deathrattle triggered I got Baine but the art was messed up. It looked like an uncropped version of the normal art with white background filling in the spaces in thr minion oval that the rectangular image didn’t.
This is known and was acknowledged by Blizzard. Thanks for the report though!