Syn Shenron, Negative Energy Explosion

If your Leader Card is a 《Shadow Dragon》 card : When this card is played from your hand or discarded by a 《Shadow Dragon》 card's skill, you may look at the top card of your deck; if it's a black 《Shadow Dragon》 card you may add it to your hand, otherwise, place it at the bottom of your deck.
Switch this card to Active Mode and your opponent places the top card of their deck in their Drop Area. Choose up to 1 《Shadow Dragon》 Extra Card in your hand and activate its skill without paying its energy cost.