It might be just me, or the card
Shadowplay seems a bit ambiguous. The game text thus states: "To play, spot 2
![Shire [Shire]](https://lotrtcgdb.com/forums/Smileys/classic/shire.png)
companions. Each time a minion is played, you may exert a Hobbit companion to exert that minion (limit once per turn)."
Two options I can think of:
1. The trigger on this card can only be
used once per turn
2.
Or that this particular minion can be exerted only once by this card per turn