[Saber Cherry]

Originally posted by Truper:
is your argument then that going from luck +2 to luck +3 reduces the chance of a bad event by 1/3 but going from luck -2 to luck -3 only increases the chance by 1/7?

Bingo! =) For the same reason, in Diablo II there were certain skills that had increasing returns - like the Amazon evade skill, a percent chance of evading all incoming attacks. Going from 0% to 10% is a 10% jump, but not very good. However, going from 80% to 90% is a 10% jump too, but of huge importance... because the correct way to evaluate the utility of the skill is 1/(1-evade). So 10% evade increases your power to 111%, 80% evade increases your power to 500%, and 90% increases your power to 1000% of normal.

As a result, Blizzard makes the evade skill give diminishing returns, like 33% evade for the first level, then 40% evade, then 46%, 51%, 56%, 60%, and so forth, or something like that... so that the incremental power increase stays fairly flat after the initial level.

-Cherry