I want to say it was:
Maneuver: Discard a minion to wound an unbound companion.
Something like that. Because I played
![Moria [Moria]](https://lotrtcgdb.com/forums/Smileys/classic/moria.png)
and destroyed everyone. I remember site nine was play a minion whose twilight cost was 8 or more. His twilight cost is -8. Sauron and Witch-King potential...who could survive that?!
Edit: It might have been once per turn though, now that I think about it.
-wtk