The Rotary blade comes with the Maker machine and it is the go-to tool to make cutting crepe paper possible because of its rolling “pizza cutter” style blade.
Burnish is a fancy term for rub. Using your Cricut scraper tool, gently burnish your crepe paper, rubbing in the same direction as the grain of the paper.
Try to invest only in quality crepe paper. If you are cutting thicker crepe paper, like the 180-gram I mentioned, you will need to turn up the pressure.