>>536016578
>something capable of killing both dragons and humans
This is ultimately insignificant at the level Louis is fighting at. The archetypes are a power marred by failure, Humans are something he can manufacture and kill at will, and dragons are just wandering husks with no identity that were slaves to his tribe. The party's archetype powers aren't even why he loses in the end, it's because Will pushes past that history of failure using that collective history left for him by all the past kings including his father (this is also why you get the hero king weapons on the Tyrant Star from killing the copied humans)