You Are Already Invincible, and You Still Want Me to Participate in the Trial?

Two years ago, an unknown existence called "Evolution Paradise" came to Sky Blue Star, randomly selected "lucky players" and asked them to participate in carefully planned high-difficulty dungeons. Those who successfully pass the level can return to reality and receive generous rewards. Some people have awakened supernatural powers, some have mastered magic, some have controlled powerful spiritual beasts, and some have even brought back high-tech products from the future world... Suddenly, all kinds of forces, official and private, were rampant, and everything was competing and prospering. Two years later, the avatar of the cosmic power "Tai Xuan Immortal Lord" happened to be traveling and was selected as a player to enter the three-star dungeon "Ruins of Giant City". The hunt begins... Ps: This book is also called "Indiscriminate Killing from the Ruins of Giant City"