I'm trying to poach some Audinos so I googled this up and all I could find is that to make the shaking grass appear, I just have to walk around. I did this for about ten minutes but nothing happened. Am I missing somewhere here or does this game just hate me?
Hi! I played through Gen 5 like a champ, so here's everything I know, and hopefully you can troubleshoot!
Other than those two things, I think that's it. Every other grass I've managed to get shaking before. Leave the route to refresh every once in a while just in case. Other than that, just bad RNG.
Source: I'm a Gen 5 stan
Just run around the area until you see a Rustling Grass. This might take shorter or longer depending on the RNG.