It is speculated that Asmodeus spawned the first crepitus, sometimes called magewretches, to tempt and corrupt mortal wizards into damning their souls. Yet while it is true that the crepitus is a highly intelligent creature with a gift for spellcraft and all things arcane, its great intellect is countered by its foolishness and inability to competently lure mortals to Asmodeus's will. As a result, specimens seen on the Material Plane are more often slaves than fiendish tempters.