Dragonhawk, Fate’s Tempest

Flying

When Dragonhawk enters or attacks, exile the top
X cards of your library, where X is the number of creatures you control with power 4 or greater. You
may play those cards until the beginning of your
next end step. At the beginning of your next end
step, Dragonhawk deals 2 damage to each opponent
for each of those cards still exiled.