Well, If play by rules, hm...

2 Blacks are: Aisha (AW), duh. And Mikoto
10 plats are: Thetis(AW), Claudia, Chydis, Marr (AW), Spica, Bashira, Garania, Adele, Gellius, Jerome (AW)
5 Golds are: Aria (mincost), Bernice (AW+CR), Yuyu, Iris

2 duelists are: Thetis and Claudia
3 Healers are: Chydis, Iris and Marr (AW)
2 Phys rangers are: Spica, Bashira
2 Mages are: Garania, Mehlis
2 Witches are: Adele, Yuyu
2 Tanks are: Bernice (AW+CR), Gellius
2 Soldiers are: Jerome (AW), Aria (mincost)
2 Free choices: Aisha, Mikoto
I'd also trade one mage spot (Garania, to fit 10 plat restrictions) for one free spot, Uzume (AW) and leave Bernice unawakened then.