Diablo

Long ago a secret war raged between Heaven and Hell, each using humanity as its pawns. While the Prime Evils of Hell were engaged in war their lesser lieutenants conspired to overthrow them. They mutinied suddenly with the combined forces of Hell, overwhelming the three Primes. Stripped of their power, they were banished to the mortal realm. Human agents of Heaven, upon discovering this, found the three Primes and sealed them within gemstone prisons, each of them sent to a different corner of th...