Answering the question about the latest powerup, no, she doesn't get it. Unresolved arcs aren't usable because you can't tell how things are going to go. Everything up to the previous arc is OK though, as are contained feats.
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Currently playing: League of Legends, Chrono Cross.
Current Projects: Fool's Overture, CYOA: http://www.gamefaqs.com/boards/8-gamefaqs-contests/60143513