If you have enough materials to buy a T4 Soul, then MP shouldn't be a problem at all...?I... don't understand? It's just random. You get them randomly from the sources I mentioned. Am I misunderstanding the question?Guard+Intercept can, in some content, basically instantly create 100 burst. If you put her into the last slot, she will probably not even slow your team down.
Also, team wide Vigor can potentially be really good. Depending on the %.