Mishra’s Bauble art by Chippy
Now jump forward to post-apocalyptic Dominaria. In Time Spiral Block, the story goes that black-aligned knights and wizards were tainted by the lands where Yawgmoth and his minions were defeated. You can see evidence of this corruption in the black ichor that runs out of their eyes. This pattern of black ichor visually evokes the mask, and essence, of the long-dead Yawgmoth.
Time Spiral style guide concept images by Jeremy Jarvis
For more on the look of black-aligned settings and creatures in the Time Spiral Block, check out this article by art director Jeremy Jarvis.