Lucky7 blocks is a Scratch extension that is planned to have lots of blocks. This extension used to be a Scratch 3 mod but it kept having serious issues. The mod has started development on June 14 and ended development on July 25. This extension was in development ever since July 25. There are some blocks that appear to be easter eggs and secrets from Scratch 2. @LuckyLucky7 from Scratch is the creator of this extension. You can access this extension's custom forum at this extension's homepage.