Star-vader, Penrose Gate

(Hand):If you have a vanguard with "Star-vader" in its card name, while you are paying the cost of a G unit with "Star-vader" in its card name for , this unit may be discarded as a grade 3. : 1 When this card is discarded from hand for the cost of , if you have a vanguard with "Chaos" in its original card name, you may pay the cost. If you do, look at seven cards from the top of your deck, reveal up to one card with "Chaos" in its card name from among them, put it into your hand, and shuffle your deck.