Three Sword's Judgment/Rulings


 * Do I have to show the card added to my hand to my opponent?
 * No, as the ability did not explicit state to do so. Compared to Makuro, Strange Stone of which this spell shares a similar ability to, Makuro specifically states "show that card to your opponent and add it to your hand", while Three Sword's Judgment doesn't.
 * In the case of your opponent suspecting you did not add a card within the card's ability (not a spell or Metallica), please consult the counsel of a local judge, or a person not involved in the current game to rectify.