The Great Gallant Bandit

“You can Tribute Summon this card face-up by Tributing monsters in your hand and/or your opponent's field, while you control no monsters. You can only use each of the following effects of "The Great Gallant Bandit" once per turn. When your opponent activates a card effect in the hand, GY, or banishment, and you control this Normal Summoned/Set card (Quick Effect): You can negate that effect, and if you do, destroy that card. During the Battle Phase (Quick Effect): You can reveal your entire hand; change all monsters your opponent controls to Defense Position.”