Lyzolda, the Blood Witch, high priestess of the cult of the demon Rakdos the Defiler, parted ways with her sanity long ago. Now she embraces the Rakdos "philosophy" (if you can call it that) of gleeful destruction. She leads Rakdos gatherings that are half demented variety show, half bloody mass sacrifice -- and cackles all the way.
Jim Nelson's art of Lyzolda depicts her embrace of the demonic forces of guild Rakdos. Note the hints of her insanity in the slicing scars across her eyes and mouth, and the fact that she's reaching out to touch streams of -- lava? The wicked throng around her is also indicative of the company she keeps, even if they're about to be sacrificed.
Lyzolda, the Blood Witch art by Jim Nelson
And what insane priestess of demonic destruction is complete without her gruesome dagger of ritual sacrifice? Hey, wait a minute:
And look who appears in the art of the Riteknife (which is, not-so-coincidentally, also illustrated by Jim Nelson):
Rakdos Riteknife art by Jim Nelson
Lyzolda also appears on the packaging of some Dissension boosters.