Concept: a necromancer but they only bring dead plants back to life so everybody thinks they’re just really, really good at gardening
I had an npc like this. Her name was Eris and she was a Necro-Botanist with three cats that are actually three parts of a cat: the skeleton (famine) the ghost (calamity) and the undead (pestilence). They were all magic cats but Calamity was the true familiar.