I was wondering if you are familiar with RPG system, or perhaps made a few of RPG games in the past?
If you do, PM will definitely make it easier for you to develop the battle system.
The tutorial is probably not "How To Make RPG Games from scratch" but it is more like tricks on how to accomplish things during your development if you ever stumble into something. You can also ask people in this forum too. Plus, Playmaker has the best community I've ever seen, way better than other visual scripting assets.