
We faced this issue lastnight where by my Endless Horde was stumped by Feild control.
Where by this is not nice. Its clearly the intent of the card to 'counter' an NCU play.
Clearly it plays out you claim NCU slot.
You play card to change manouver to Endless Horde.
Then the non active player plays feild control again switching the nature of the NCU slot.
There is a problem in that one writing of this rule says you resolve all the active players rules first.
This wording clearly does not take into account 'counterplay effects' because there is literally no point countering something which has already played out.
So clearly it should be played in the spirit the card was intended and the counter effect card will cancel the first switch.
Exactly like 'Counter plot' for the Lannisters.
It's not nice. But it's the way it is.
I got stumped by it last night. It's a strong play. Hard one for free folk to suck up.