So... you unlock new abilitys after the evolution, but do you keep the old ability as well or will it get overwritten?
So for example you have +20% dmg for the group on 1st turn and after evolution you get something shitty like 10% Light gauge, does the +20% dmg get overwritten?
If so isn't it pretty useless to do the evolution?

2* girls get nothing with evolve, 3* girls get a new ability similar to the ones that the 4* have, 4* girls get their old ability stronger, 5* and 6* get a new ability plus the old one, so after evolving them they have 2 abilities instead of only 1

Oh thanks for the clarification So i can evolve my 5* without being scared of losing the first ability