Syn Shenron

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.
At the end of your turn, choose up to 1 yellow 《Shadow Dragon》 card in your Battle Area and switch it to Active Mode.
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 2 cards, then switch up to 1 of your energy to Active Mode and flip this card over.