Seeking the name of the immortal cultivation novel

The main character was very strong at the beginning of the beginner rain casting technique, and many of his fellow disciples asked him to help them cast rain in the ling fields. After that, he could even use the metal spiritual energy to help the spiritual herbs kill insects. Later on, he was even able to draw talismans that could refine Alien Flames. In the end, he even had his own power in the foreign land. I only remember these contents