March on Xandrar

Put up to one target instant or sorcery card
from your graveyard on top of your library.

Amass Warforged 2. (To amass Warforged 2,
put two +1/+1 counters on an Army you control.
It's also a Warforged. If you don't control an Army, create a 0/0 black Warforged Army creature token first.)