Treason of Isengard

Put up to one target instant or sorcery card
from your graveyard on top of your library.
Amass Orcs 2. (To amass Orcs 2,
put two +1/+1 counters on an Army
you control. It's also an Orc. If you don't
control an Army, create a 0/0 black Orc
Army creature token first.)