Syn Shenron, Wicked Strike (P-313) - Promotion Cards

[Auto] 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.
[Activate:Main/Battle] [Once per turn] [Spirit Boost 1] (You must remove a marker from your Unison Card to activate this skill.) If your Leader Card is a "Shadow Dragon" card : Choose up to 1 "Shadow Dragon" Extra Card in your hand and activate its [Activate: Main/Battle] skill without paying its energy cost.