Hussar
Legend
From the PHB
Strength, measuring physical power
Dexterity, measuring agility
Constitution, measuring endurance
Intelligence, measuring reasoning and memory
Wisdom, measuring perception and insight
Charisma, measuring force of personality
Well, that's true and all but doesn't really answer my question. What sort of effects would be resisted by reasoning and memory? Illusions are resisted by wisdom, so that's out. I'm really having a difficult time trying to think of an effect that would fit here.
I could probably see the better argument for charm effects to be resisted by Cha, but, again, wisdom is the key here and that's another sacred bovine that people will lose their poop over if it's changed.