Felon said:
Examining a monk, it's easy to see that its attack and damage are as dependent on Strength as much as any melee combatant, perhaps moreso due to the medium BAB. The class is not proficient with any armor, so it really depends on a combination of Dexterity and Wisdom for armor class. The class has 1d8 hit dice, so a Con bonus is a helpful thing to have.
That's a nice summary of the monk class, and why it needs to have high values in pretty much every stat except charisma. Now if you're trying to tell me that the Warblade, with 5 out of the classes 13 abilities being tied to intelligence doesn't make it dependant on having a bonus in that score, I'm going to tell you you're nuts. Is someone actually going to create a character and not use any of those abilities? Well yes, they're probably are. People make choices based on their character concept rather than character optimization all the time. Still, when you're designing a class, you take it as a given that people will design their characters to make use of its abilities. I bet that the Warblade builds over on the optimization boards will not have a low int score. That's hardly the be-all-end-all of character creation, but it is where you look when you design efficient characters.
This leads some folks to consider it axiomatic that any class feature that's based on an ability score should be considered a dependency. However, looking over the warblade, the class is clearly not dependent on its Intelligence bonus for anything fundamental. Even given a 10 Intelligence score, its attack, damage, and hit points would all still be outstanding. A warblade's armor class could be considered mediocre, but none of its Int abilities improve that anyway. It would have one good saving throw, which is common to many classes.
In short, the Int bonuses are perks, not dependencies. Nice to have, but not essential. Give it a medium BAB and d8 hit dice like the monk, and then we can talk about dependencies.
Wow, I guess you are going to make that argument. I guess I'd say that you're going to see about as many Warblades with Int 10 as swashbucklers with Int 10. After all, the swashbuckler has a much smaller set of abilities based on a high int.
Different strokes and all that, but I guess I find:
A bonus to reflex saves where the ref save is poor to begin with
A bonus to confirm crits
A bonus to damage versus flat footed or flanked opponents
A bonus versus bull rush, feints, trips, disarms, overruns and sunders
A bonus to attacks and damage on AoO's
...to be something I most likely would build into my character. It's over a third of the class abilities, after all. Are any of these essential? No, but I have also seen monk builds with low wis scores as well. I must admit to never having seen a swashbuckler with a low int, but then there must be one out there somewhere...
I guess after all that, it seems that this is a major case of "your mileage may vary."
--Steve