LIGHT Team: Mordred(EX A_Def -20%) + Michael[replaceable] + Light Nike + Eros + Sol. (total debuff -30%Def/-50% Atk)
How does this sound to you? Since I don't have all the luxury to raise all my element to the max, I thought about concentrating on 1 or 2 element and LIGHT is the first one I thought about. The kind of build I'm aiming for is ENDURANCE for maximum survival rate, but can still do high damage hence why I choose Light Nike for her +120% Atk max party buff (yeah have to wait 10 turns but that's better than nothing)

Yeah Light Nike is still super far away (in 2019? ouf) but I can manage to wait that long, and I would have all the necessary ressources to pull her (which is good since she's a limited edition)