Their most unique and powerful attribute is their remarkable ability to rapidly burrow underground and launch attacks from below on surface creatures.
Just as sharks attack creatures on the water's surface, they have earned the nickname "land sharks."
Evidently, these land sharks have carried over their unique attack methods into their skeletal forms.
They are even more agile and formidable than they were when alive.
At least, land sharks are somewhat limited by their surroundings. If they encounter rocky terrain, their underground stealth capability will be greatly reduced.
The entire Plains of Bone might be composed of skeleton remains, though this is undetermined for now; however, the surface layer, up to several meters, is certainly made up of various bones, allowing the Skeleton Lizard Sharks to swim freely.
The Corpse Giant is attempting to use underground stealth to avoid the bombardment by Gaven's Skeleton Cannon Array.
