Cannot embalm Vizier of Many Faces
Vizier of Many Faces was in my graveyard. I paid the 3UU to embalm it, and clicked Massacre Wurm as my choice to be copied. The prompt on the left then told me to pick a creature, and instead of the Yes / No buttons, there was only a No button. I clicked on different creatures a few times to see if anything would change. The art on Vizier changed, but it still wouldn't let me click Yes. With no other option, I eventually gave up and clicked No. The Vizier then went to the graveyard without copying anything.