Complex sentence: Famine (real name Autumn Rolfson) is a fictional mutant villain in the Marvel Comics comics universe, most notable for being one of the original four horsemen of the villain Apocalypse.
Split into simpler sentences: Famine (real name Autumn Rolfson) is a fictional character, a Mutant supervillain appearing in the Marvel Comics universe. She most notable for being one of the original four horsemen of the villain Apocalypse.