You know the (pick random (1) to (10)) block? Hate to break it to you, but that's not actually random. It is actually predictable and could be exploited. This random generator, however, puts it through 8 layers of randomness so it's pretty much impossible to exploit! It also uses "days since 2000" for a much more random random block. Free to use, credit not needed but appreciated :) To make all sprites use it, drag the define block into the sprite. The custom block should appear in the sidebar.