Star-vader, Bad Spiral Dragon

:When this card is discarded from hand during your turn, if you have a vanguard with "Star-vader" in its card name, look at the top seven cards of your deck, choose up to one card with "Star-vader" in its card name from among them, reveal it and put it into hand, and shuffle the deck. (Drop):If you have a grade 3 or greater vanguard with "Star-vader" in its card name, and your opponent has one or less locked cards, [bind this card], choose up to one unit card from your opponent's drop, and your opponent calls that card to . Your opponent's cards' abilities do not activate from that call.