Fang of Fain, Vacant Fang

[AUTO]:When this unit is rode upon by a grade 3 unit with "Blangdmire" in its card name, [COST][Soul-Blast 1], reveal the top three cards of your deck, choose a card from among those revealed cards, and put it into hand. You may discard all of the remaining revealed cards. If you did not discard them, shuffle the deck.