Is Turncloak's effect a lasting and thus terminal, effect? The wording makes me think that it is - "If you do not win dominance, discard this character from play." - since discarding a dupe still won't change the condition that the player did not win dominance. If it was worded "After you lose dominance,…", then I would say there is a trigger point where the passive effect applies once and only once.
I think this may have already been covered, but with the search feature nerfed, I can't find it. Thanks!