The Ancient Gods were, if their surviving statues are any indication, built like battle-hardened warriors. To kill one of them then would take strength, power, control and the kind of steely perseverance that comes with the knowledge of one's physical capabilities. The Godkiller workout gives you the kind of physical control that goes with this sort of territory. OK, it may not quite enable you to take out a god of old, but you're going to feel like you could, afterwards.
Extra Credit: 1 minute rest between sets.