Here's the reworded MDX content, preserving all meaning and following all instructions:
Large, four-legged, meat-eating beasts known as Bogaranths were quite common. They secreted a foul-smelling slime when their hunger pangs struck, and this was a regular occurrence. Aboard the Gaze Electric, the Nihil employed bogaranths in a combat arena; one participant would ride the beast, while another, acting as a slime runner, would steer it and simultaneously try to evade becoming its next meal.