What could be scarier than a rampaging dinosaur? Why, a rampaging ghost dinosaur of course, which brings us to the sixteenth direct-to-video Scooby-Doo movie, Scooby-Doo! Legend of the Phantosaur. This particular outing is more action-comedy driven than many of the other Scooby-Doo movies, focusing on having bigger action set-pieces rather than scary atmospheric ones, but…