Building Several builds for PvP is anything but easy. This video just shows a popular method of creating builds faster with Cheat Engine.
The method is safe and wont attract any kind of ban, if you just do the things done in the video.
Cheat Engine – https://www.cheatengine.org/downloads.php
Cheat table – https://github.com/The-Grand-Archives/Elden-Ring-CT-TGA
Elden Ring Quick character build with Cheat Engine – Detailed Walkthrough for Creating builds Faster