Stealth Beast, Musou Byakko

:[ 1 & 1] When this unit is placed on or , you may pay the cost. If you do, look at seven cards from the top of your deck, reveal up to one card with the dominate ability from among them, put it into your hand, and shuffle your deck. -:When this unit attacks a vanguard, if the number of cards in your hand is greater than your opponent's, this unit gets +3000 until end of that battle.