Skysmasher

A skysmasher arrives as a red blaze across the sky, leaving a trail of light and smoke. The streak is followed by a terrific boom, itself only a precursor to an even more dramatic event: impact. A fountain of earth erupts from where the skysmasher touches down, destroying everything in short range but the creature itself. The shockwave ripples outward, creating a fierce air blast reaching a half mile (0.8 km) in every direction, knocking down trees, structures, and any creatures in the area. The deafening roar of impact is audible twenty times as far, slowly fading like distant thunder. That’s when the skysmasher burrows out of its crater, a rocky creature over 20 feet (6 m) tall.