Doomsday Bounty System: Can I Unlock Artifact Permissions?

[Apocalypse, superpower, system] Chen Li was originally just an ordinary person in an ordinary world, but suddenly traveled to the end of a different world. With the attack of predators and the sudden awakening of the bounty system, he discovered that his identity and bloodline were not simple. The first reward at the beginning was an elemental power optional package. Can he absorb his original power by killing other elemental power owners? The more he understands the current world structure, the more he is at a loss. Why not just play it as a bounty game?