Wyvern Soup

Perhaps using any necrotic nature the darkness has to target cancers and infections, though it would take a great deal of precision

Would love to write a necromancer who walks into the middle of your vision of a long tunnel with a light at the end, tosses a blanket over the light, and then slaps you a few times to get you to wake up.

Also reanimating/animating spare bones, flesh or mummified remains to work as a prosthesis for a lost limb or skin, grafts, implants...