[Auto] When this card attacks, look at up to 5 cards from the top of your deck, add up to 1 "Shadow Dragon" card among them to your hand, then shuffle your deck.
[Auto] At the end of your turn, choose up to 1 yellow "Shadow Dragon" card in your Battle Area and switch it to Active Mode.
[Awaken] When your life is at 3 or less, or you have a yellow Unison Card with a specified cost of 4 in play : You may draw up to 2 cards, then switch up to 1 of your energy to Active Mode and flip this card over.

Syn Shenron, Negative Energy Overflow
[Auto] When this card attacks, draw 1 card.
[Auto] At the end of your turn, choose all yellow "Shadow Dragon" cards in your Battle Area and switch them to Active Mode.
[Activate:Main] YYYYYY : Play up to 7 "Shadow Dragon" cards with different card names from your Drop Area.