Aang, at the Crossroads [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.

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Aang, Destined Savior

Flying

Land creatures you control have vigilance.

At the beginning of combat on your turn, earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)