Aldarc
Legend
I would add a third: Con is too passive. It doesn't really do anything other than HP and Constitution (w/ Concentration) saves/checks. Players can actively use the other five stats to interact with the world, but they can't with Con.I see two general conceptual problems with Con.
Which would also make sense for Concentration mechanics.2) Most modern fantasy tends to depict endurance as a function of mental willpower, rather than physical toughness. This is especially prevalent in anime and comic books, and also fantasy that derives from similar inspirations.
But if I could, I would also kill Wisdom and split it between Intelligence and Charisma/Willpower/Spirit. Then you could attach each of the main four classes to a primary stat: i.e., Strength (Fighter), Dexterity (Rogue), Intelligence (Wizard), and Spirit (Cleric).