Tyler Reece, a Paleontologist, who has lived a rather boring life, fins the discovery of the century. An evolved Tyrannosaurus Rex. Larger, meaner, and more predatory. It dwarfs the previous incarnation, by becoming slightly larger than a Spinosaurus, and having the weight to match. Of course there was only so much to gauge from the bones, but of course, while Tyler is trying to bask in his short glory, he is taken to a far off world.
However, luckily for Tyler he's not defenseless, as he controls the body of the most powerful predator in that world: the world of Equus.
A world filled with colorful....talking ponies....who are herbivores....Yep....