Leiana, Horde Champion

+2 You may put a +1/+1 counter on three target creatures you control.
-3 Your creatures gain trample and lifelink until
end of turn.
-7 Reveal cards from the top of your library
until you reveal a non-creature or non-land card.
All creatures you control gain +X/+X, where X
is the number of cards revealed this way. Put the
revealed cards on the bottom of your library in
any order.