Pricking Nurse

/:When this unit attacks while boosted, 1, choose a card from your damage zone, and put it into your hand. If you put a card, put the top card of your deck into your damage zone face down. (Hand):At the beginning of your ride phase, if your vanguard is grade 1 or less, [discard this card], look at the top five cards of your deck, choose up to one grade 2 or less card from among them, reveal it and put it into your hand, and shuffle your deck.