Short of Supplies? I Can Disassemble and Synthesize

Time travel? There is no time travel, no system. It's just a fantasy before sudden death. Lin Fan traveled to the fallen wilderness invaded by Warcraft. He had no memory of the original owner and no guidance from newbies. He was injured when he landed and was trapped in a dense forest full of Warcraft. When he walked out of the dense forest, he realized that there were only five major passes left by the human race. Relying on the creation power gained from every piece of grass and trees, in the occupied area surrounded by monsters, Lin Fan step by step went from a survivor to a strong man who killed monsters.