Great Mage With Cheat is a Manga/Manhwa/Manhua in english language, manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

In 2034, the long-awaited final game “God Wars” was released. As a professional player, after encountering an accident in reality, I was able to see the “hidden information” that ordinary people can’t see. “Congratulations, you have obtained the legendary hidden profession—Great Mage!”