Why Do Legendary Heroes Only Have 4 Traits?
Yes, Heroes have a unique Leader trait for a grand total of 5 traits when all traits have been unlocked, but it's only effective if they're in the Leader spot. If they aren't in a Leader spot, their Leader trait is no longer active so they essentially have 4 traits instead of 5. Heroes already have less than optimal traits, why give them yet another disadvantage? Why not let them have some use of their Leader trait, even if it's just for them and not the whole group or something along those lines?