Character Card

Not sure if this is the best subforum for this, but it fits (I COULD phrase it as "should I switch up my character card decks?"). I figured with the server down I would get outside opinions on how I should arrange my character cards to maximize the effects.

I have:

Evan - S (MP recover)
Marksman - SS (4% crit)
Wild Hunter - S (1.5% insta kill)
Dawn Warrior - S (wep def?)
Dual Blade - A (iunno)
Cannoneer - S (-exp% loss)
Mercedes - SS (skill CD)
Demon Slayer - S (Status resist)
Phantom - S (meso obtained)
Jett - S (summon duration)
Mihile - S (wep def?)
Kaiser - S (40 str)
Angelic Buster - S (40 dex)
Luminous - S (int?)
Kanna - S (boss dmg)
Hayato - S (min crit dmg)
Aran - S (HP recover)

What would be the best arrangement? I was thinking something along the lines of:

Marksman, DS, AB
Kanna, Hayato, Aran
Evan, Mercedes, Jett

(I think this is what I have, sets might be messed up too)

This would be for my Marksman. I am not totally against making new characters, buuuut I'd rather not lol