I was looking at some cards and this just sort of came to me.

Fruitless Pursuit
![Isengard [Isengard]](https://lotrtcgdb.com/forums/Smileys/classic/isengard.png)
Event * Maneuver
Exert an
![Isengard [Isengard]](https://lotrtcgdb.com/forums/Smileys/classic/isengard.png)
tracker to weary an unbound companion until the start of the regroup phase.
(That companion may not exert.)Basically, a wearied companion is just too tired to exert himself but is physically fine. No closer to death but can't push his body any further. Could be a really powerful shutdown strategy, which means that the mechanic would be heavily culturally enforced.