I recommend the following two novels to you: 1. "Doomsday's Slaughtering Prototype": The protagonist of this book, Zhang Mo, had a terrifying Slaughtering Prototype System in the apocalypse. He could transform into sharp claws, steel whips, steel blades, and other forms, becoming a natural killing machine. They were free to roam among the tall buildings that were filled with zombies and mutated beasts, carrying out endless slaughter and endless evolution. If you like these apocalyptic novels, I recommend you to read them. 2. "Doomsday Killing Game": The protagonist of this novel, Li Duo, also has the ability to kill his original form. He survives in the apocalypse where order is broken. He has sharp claws, heavy hammers, and fire dragons. They could struggle to survive in the cruel world of the apocalypse. If you want to read the novel about the ability system in the original form of the sadistic killing, this book is also a good choice. I hope you like this fairy's recommendation. Muah ~π