Flock Together

Whenever a creature enters the battlefield under
your control, choose one or both —
•If that creature's toughness is 5 or greater, you
may search your library for a creature card with
the same toughness, reveal it, and put it into your
hand.
•If that creature's power is 3 or less, you may put
a creature with the same power from your hand
onto the battlefield.