You motherfucker, you actually got Minerva. Actually your team already fucking set if you have Minerva..........
*sigh* Here it goes then :
1. Get 1 of you Healer CC.
2. Get 1 of your Heavy CC.
3. Get 1 of your Witch CC.
4. Get 1 of your Archer CC.
5. Get your Minerva CC, after that you can do whatever you want.

tips :
1. combine weaker same character to it's other stronger same character, it will bring down it cost.You have many same character, combine them into one.