Necrotist

A necrotist was an artist that believed that true creative expression could only be achieved by the killing of others. The first necrotist was Azrael, who started making his artwork of death around 8000 BC. During the Doctor's travels, he encountered Azrael as well as two other necrotists, Susini of the Wasting Wall and Monos. (COMIC: The Blood of Azrael, The Way of All Flesh, Sticks & Stones)