That said, I can tell you that, post-R91, ability damage is not linear with level of character. For instance, Wind Storm at lvl 15 is 238, 94 is 1838 (+21.5 / lvl), 98 is 1913 (+18.75 / lvl), 134 is 2345 (+12 / lvl), 144 is 2436 (+9.1 / lvl), 190 is approx. 2780 (+7.5 / lvl). It tapers.