Found out that you can make the AI stack Columns by delaying your attack. That only worked once though. See https://www.dailymotion.com/embed/video/x7f64w3 for a video of this movie. Done in Bizhawk 2.3.2
This is probably still improvable Done using BizHawk 1.13.0. I will probably not finish this TAS, so feel free to use this as a basis for your own TAS or better yet, try to be faster than this TAS.