Aang, at the Crossroads Bonus

TLA Avatar: The Last Airbender

Flying When Aang enters, look at the top five cards of your library. You may put a creature card with mana value 4 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order. When another creature you control leaves the battlefield, transform Aang at the beginning of the next upkeep.