Well, lets compare, all of the following are class abilities that are based on “off-stats” for the class (and this is just a small list). This is an awful lot more classes than simply the Warblade. This, to me, says that it is an ongoing concept of class design starting in the earliest classes and being used in various classes over time. They all use pretty much the same basic concept in mechanical bonuses based from an “off-stat” to something specifically useful to the class concept.
Additionally, the Warblade’s INT based abilities make up 5 out of their 13 class abilities. I’d say that is a pretty significant part of the class design and highly unlikely it was meant to simply be ignored. Thus, I have to make a huge leap of faith here and ASSUME they were written into the class because they were intended to be part of the class’s shtick. I can’t assume that these were meant to be ignored or they wouldn’t bother putting them in the class.
Warblade:
• Battle Clarity – INT to REF saves
• Battle Ardor – INT to Confirm Crits
• Battle Cunning – INT to Damage vs. Flat-footed
• Battle Skill – INT to resist special attacks
• Battle Mastery – INT to AoO Attack/Damage
Cleric:
• Turn Undead – CHA = Uses per day and Turn Check
Crusader:
• Indomitable Soul – CHA to WILL saves
• Smite – CHA to Attack Bonus
Monk:
• AC Bonus – WIS to AC
Ninja:
• AC Bonus – WIS to AC
• Ki Power – WIS = Uses per day which feeds almost all their other abilities
Paladin:
• Smite – CHA to Attack Bonus
• Divine Grace – CHA to Saves
• Lay on Hands – CHA = Healing
• Turn Undead – CHA = Uses per day and Turn Check
Spirit Shaman:
• Chastise Spirit – CHA to Save DC
• Spirit Form – CHA = Deflection AC
• Exorcism – CHA to check
Swordsage:
• AC Bonus – WIS to AC
• Insightful Strike – WIS to Damage
Warmage:
• Warmage Edge – INT to Damage spells
JMHO, but I don't think any of these abilities were added to the classes and NOT intended to be a part of the class's functinality.
Additionally, the Warblade’s INT based abilities make up 5 out of their 13 class abilities. I’d say that is a pretty significant part of the class design and highly unlikely it was meant to simply be ignored. Thus, I have to make a huge leap of faith here and ASSUME they were written into the class because they were intended to be part of the class’s shtick. I can’t assume that these were meant to be ignored or they wouldn’t bother putting them in the class.
Warblade:
• Battle Clarity – INT to REF saves
• Battle Ardor – INT to Confirm Crits
• Battle Cunning – INT to Damage vs. Flat-footed
• Battle Skill – INT to resist special attacks
• Battle Mastery – INT to AoO Attack/Damage
Cleric:
• Turn Undead – CHA = Uses per day and Turn Check
Crusader:
• Indomitable Soul – CHA to WILL saves
• Smite – CHA to Attack Bonus
Monk:
• AC Bonus – WIS to AC
Ninja:
• AC Bonus – WIS to AC
• Ki Power – WIS = Uses per day which feeds almost all their other abilities
Paladin:
• Smite – CHA to Attack Bonus
• Divine Grace – CHA to Saves
• Lay on Hands – CHA = Healing
• Turn Undead – CHA = Uses per day and Turn Check
Spirit Shaman:
• Chastise Spirit – CHA to Save DC
• Spirit Form – CHA = Deflection AC
• Exorcism – CHA to check
Swordsage:
• AC Bonus – WIS to AC
• Insightful Strike – WIS to Damage
Warmage:
• Warmage Edge – INT to Damage spells
JMHO, but I don't think any of these abilities were added to the classes and NOT intended to be a part of the class's functinality.