Threnody

Threnody is a mutant that first appeared in X-Men comics in 1993. She was rescued from a life of homelessness and taught to hone her power of draining energy from people and animals that were on the brink of death. She can also sense when someone is severely sick or dying. This power also allows her to save herself from death, though this power does have its drawbacks: She often and unwittingly creates zombies that are attracted to her presence... She also had to have metal plates put permanently onto her face to control her powers.

And how much do you LOVE that outfit in the first pic.