I know about the rand() function, you get 10 cases in rollD10, without having to do a + 1 (it also returns faster). Zeroes could lead out to a non-hit e.g. on a Enemy Non Player Character.
The meaning of the RNG class is to use it within e.g. the empower method which can be made through e.g. the water god Umberlee with swim and so on (derived classes from the Deity AI class.)
Then the split method using ^### should split up the files for you in a small program that's left as an exercise.
HTH