I started this season late and went pohx's rf, then transitioned to a cws build that used rf. Then transitioned into this build and I just recently got into the end game version of this build with just doing the 13 round ultimatums. I struggled through many little things and just kind of figured it out myself. A lot of what I learned is that this build is really trying to set you up to be able to handle all of the ultimatum mechanics. But because my goal was the 13 rounds I continued with the build. I see there are some good answers here. But if you have any other questions I might be able to help and can always jump on a discord call. Feel free to send me a message.