Fear of the Dark
Nyxis Nine (excaped Barovia)
Swords of Eight Gnome Wizard
A mostly mute, very powerful wizard that uses moving slime-glyphs for magic.
She is a gnome that is clearly very ill, green of tint, and has an extremely simplified machine right hand that grows more sophisticated as it creeps up her arm, onto her chest, up her neck, and to her jaw.
Being from a realm facing a pandemic called the Tech-Necrotic Plague has left her partially machine. The plague usually is contracted by the hand. Initially the skin appears to be metal, like that of a warforged. However, as it continues to spread to the rest of the body, the machine parts simplify. The metal skin corrodes and falls away leaving tens of thousands of complicated gears that used to be cells. These cells begin to fall away leaving larger and more simplified gears. These eventually simplify to a few very basic components before rusting away and falling away forever.
Nyxis has an extreme simplified machine right hand that grows more sophisticated as it creeps up her arm, onto her chest, up her neck, and to her jaw.
However, she was able to stop the plague by injecting herself with a specialized tame green slime that was developed far away in her realm for this purpose. Her blood is now green slime, held in check by her constant mental powers, but checking the Tech-Necrotic Plague.
Because of this, she is mostly mute and not nearly as powerful as she had been.
This being said, she has a rare power in that she can “spit” moving glyphs of green slime from her wrists, summon magic, and use her gnome teleportation skills to move freely in and out of normally inaccessible areas. This includes Ravenlofts, which normally move across dimensions and thus make it impossible to travel into—while her moving travel glyphs can compensate.
Mordenkainen mentioned that she was sent to Aqua with the Eye of Vecna, insuring that she would be trapped there.