The first time your queen is captured, one of your bishops, or a knight if you have no bishop, immediately turns into a queen on its own square. If you have neither, nothing happens. Triggers once.
You draft Understudy in Buff mode. Passive: it works on its own the whole time you hold it, with nothing to activate.
As a pieces card, it summons, revives, promotes, or converts a piece.
“Spotlight, and a bow.”