Birdkeeper Class

LVL 1| When Birdkeeper Class enters the battlefield, look at the top five cards of your
library. You may reveal a creature with flying
from among them. If you do, add it to your hand.
Put the rest on the bottom of your library in a
random order.
{w}{u} LVL 2| Flying spells and creatures with
flying cost {1} less to cast.
{3}{w} LVL 3| Creatures with flying you control
have +1/+1 and vigilance.