Flying (This creature can't be blocked except by creatures with flying or reach.) Whenever you attack, surveil X (Look at the top X cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.), where X is the number of opponents being attacked. At the beginning of each end step, if three or more cards were put into your graveyard from anywhere other than the battlefield this turn, draw a card.