Flying (This creature can't be blocked except by creatures with flying or reach.), vigilance (Attacking doesn't cause this creature to tap.) Whenever you surveil (Look at the top cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.), put a +1/+1 counter on Mirko, Obsessive Theorist. At the beginning of your end step, you may return target creature card with power less than Mirko's from your graveyard to the battlefield with a finality counter (If a creature with a finality counter on it would die, exile it instead.) on it.