I experienced the same issue during the midweek magic event where I tried to embalm a Cloudspire Captain. I had used the ability of Cursecloth Wrappings to embalm the same card on the previous turn but did not cast it due to not having enough mana, then when I tried to play it on the following turn this happened. Not sure if that has anything to do with it.
I experienced the same issue during the midweek magic event where I tried to embalm a Cloudspire Captain. I had used the ability of Cursecloth Wrappings to embalm the same card on the previous turn but did not cast it due to not having enough mana, then when I tried to play it on the following turn this happened. Not sure if that has anything to do with it.