Superpower Cultivation: Become Grandpa Goldfinger at the Beginning

It was time to travel through the prosperous age, and countless time travelers came to the world of cultivation with supernatural powers. Luo Tian is also one of them, but he unfortunately traveled through time and became Grandpa Goldfinger. And the ability is a transparent map that seems useless. As a residual spirit, Luo Tian has two ways to become stronger: One is to become a mentor and train the "competent" into strong ones; The second is to devour other time-travelers...