Mafia 106. Cradle of Dragons

If the game master doesn't know into whom the spirit has possessed, then I don't understand the mechanics of how the player applies a specific special ability from the perspective of the phantom, if they don't know what those abilities are.
For example, if the spirit possesses Boudicca, how can the player apply the "Inquiry" special ability without knowing that it is the "Inquiry" ability? Or how can they apply "Duel" (or "Staged Death," Gonzalez could have lost his passives precisely at the moment of possession), if only one target is named, but there should be two. And it's also difficult to apply the "Redirect" ability to Fagus – even if the second player is not the target, they still need to be named.