Yawgmoth

Yawgmoth, known as the "Father of Machines" and called the Ineffable by his underlings, is a fictional being from Magic, The Gathering, and is the unabated god of the plane of Phyrexia, a universe of untold corruption and mechanical monstrosity. He wields nearly unlimited magical might and commands infinite hordes of twisted creatures known as Phyrexians. Yawgmoth and the Phyrexians are the ever-present evil, opposed by a wide range of beings, both mortal and otherwise. The greatest concentration of information on Yawgmoth's origin and early life is chronicled in The Thran. Yawgmoth is a kind of medical genius, more concerned with proving his methods and theories than actually curing the illnesses he is called upon to remedy. He was the main antagonist throughout most of the original Magic, The Gathering sets until his death in the expansion Apocalypse.