Oh I just thought of an idea xD
If he is meant to get rid of other people than his own village, then with his clone disguised as one of the examiners couldn't he kick people out? Of course, his won't count but him actively trying to disqualify them could make them make mistakes that the real examiners will pull upon.
Ofc, when enough is out someone could call them out or the other examiners find something wrong and mc disperses it.
kennery_zaraspe