Chaos space marines: fabius bile

Known as the Father of Clones, the Primogenitor and the Spider, the infamous Fabius Bile has accumulated many titles over the course of his long life, but none fully captures the extent of the malevolence that drives this heretical scientist. A master of the corruption of flesh and a creator of living nightmares, Fabius Bile is one of the most abominable renegades ever to plague the Emperor's domain.