Crack! Crack! Crack!
Anything, when it holds sufficient weight and volume, displays extraordinary lethality, and Skeletal Bombs were no exception.
Every monster unfortunate enough to be at the impact point, whether it was Goblins, Hobgoblins, or even massive Trolls, without exception, were hammered to the ground instantly. Even if they didn't turn into a puddle of gore on the spot, they were flattened into meat patties, most dying instantly.
And that wasn't all. These Skeletal Cannonballs were not solid; they contained highly compressed Negative Energy. When subjected to severe impact, this Negative Energy would lose its stability and explode violently, sweeping up the bone fragments within a ten-meter radius and decimating all living creatures.