Beams can be real funky if you reaim them shortly after releasing the q button. After fucking around and deforesting the area outside of Riverville, I discovered the magic of beambending. Here’s a brief clip of the magic of beam bending.
Also, completely unrelated but charging a beam will actually lower it’s range. For some reason a beam’s range is inversely proportional to the size of the explosion (and maybe beam width). This isn’t too big of a deal, until you realize that charging a spell increases it’s size, and thus reduces the beam’s range.