If you want the feeling of 1v1 Lol Offline without the hassle of hacking APKs, you need alternative games that are designed for local play.
Carefully follow setup instructions; expect to configure local ports, run a local server executable, and add champions/maps provided by the project.
You might wonder, "If I have internet, why bother with offline?" Hardcore players use offline practice to break bad habits.
The closest official method to playing offline is the "Practice Mode" available on the mobile app and the website.
Pro Tip: Use a Wi-Fi hotspot to start the game, then switch off mobile data. Some versions of the game will allow you to finish the round against the AI due to cached assets.
Want to learn the "High Ground Retake 90s" without getting shot in the back? Offline mode is your dojo.