Trading My Life for Power: Every One of My Clones Has a Unique Skill

Overworked office drone Zhang Yang transmigrates into a world of mythical beasts and superpowers, becoming a rich heir with a character panel that lets him add unlimited points to his stats and abilities! “Wait, I get all that, but if I can add points, why do I have to spend my lifespan?” Zhang Yang doesn't want to die young, so he decides to spend other people's and mythical beasts' lifespans instead! Years later, Zhang Yang's body has become transcendent, and his abilities have reached godlike heights. On the day humanity and the mythical beasts face off in their final battle, Zhang Yang stands at the very front of the human army and says to the beast chieftain, “I hear you're immortal, so I'm here to borrow a little of your lifespan. And don't say I'm picking on you: you can choose any one of my clones.”