Dreamweaver Ascendant

{2}{w}, {t}: Look at the top three cards of your
library. You may reveal a legendary creature card
from among them and put it into your hand.
Put the rest on the bottom of your library in
any order.
Whenever you control three legendary creatures,
you may activate this creature's Dream ability.
Dream — {3}{w}{w}, {t}: Until end of turn,
creatures you control get +2/+2 and creatures
your opponents control get -2/-2.