Fall of Cair Andros

Whenever a creature an opponent controls is dealt excess noncombat damage,
amass Orcs X, where X is that excess damage.
(Put X +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.)
{7}{r}: Fall of Cair Andros deals 7 damage to target creature.