Haze Shenron, Power of Darkness (BT14-134) - Cross Spirits Foil

[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] [Once per turn] (-), if your Leader Card is a "Shadow Dragon" card and you switch this card to Rest Mode : Choose up to 1 black "Shadow Dragon" Card with an energy cost of 3 or less in your hand and play it.