classes and making them more appealing then other classes when allowing class change

[Crimson Dragon Inc.]

this is a huge thing for me right now, i want to allow class changing thru yanfly's amazing plug ins, for the main character this cuases a slight hiccup...

his base class is blazing soul, as he goes thru the journey he unlocks the upgraded classes (in order from weakest to final) blazing hero, raging soul, raging hero, dark inferno, enlightened hero, and finally einherijar

for the others this is fine, as they master their starting class and then unlock several paths for that character to follow (setting equipment to character instead of class)

but for the main hero,  how do i make his classes more appealing to use then the other classes he gets ( any7 from this list: warrior, paladin, samurai, ninja, thief, assassin, spell blade, priest, mage, sage, summoner, destroyer, and knight)

how do you answer this question when you are up ageisnt it?

 

[ArcaneEli]

make his special class have less stats then the other ones, but you can use more powerful skills / buffs compared to the other one.

so Special class = set-up (bosses), normal class = brute force (normal enemies)