It's a problem enough when a player has two good defenses. It's even worse when, due to their class, they're forced to pump two stats that boost the same defense (laser Clerics, Str/Con Fighters, Cha Paladins, wand Wizards). Suddenly, they have TWO bad defenses and they're really screwed. If you want to make the ability increases affect more abilities, it should boost at least 4.
There has to be a better way though. Maybe at levels 8, 18, and 28 your worst defense gets a +1 increase? The problem again are the characters who must pump two stats that affect the same defense
. The best solution is to somehow mitigate or eliminate the effect of abilities on defenses, perhaps either by starting with a higher and auto-scaling base amount and then adding say half your ability modifier or introducing the equivalent of heavy armor for each defense.
There has to be a better way though. Maybe at levels 8, 18, and 28 your worst defense gets a +1 increase? The problem again are the characters who must pump two stats that affect the same defense
