TIAN SHENG DU NAI, WO ZUZHOU LE QUAN SHIJIE!

A parallel game world merges with the modern world, and now ferocious monsters and alien races roam the land. In the wilds, there are many dungeons and hidden realms to explore. Humans have awakened news skills and professions, and they must defeat monsters to level up. On the day of the awakening, Lin Luo found himself with the profession of priest, which was the most popular class, but had no damage ability of its own. Just when he was wondering what to do, he discovered that his skills had mutated! His healing abilities now take away health instead? His blessings have turned into curses? But I am supposed to be a priest healer! (Source: Kuaikan, translated) — Description from AniList community (anilist.co).