Amass 2, then the Army you amassed deals damage equal to its power to each non-Army creature. (To amass 2, put two +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)
Near Mint - $100
Lightly Played - $100
Moderately Played - $100
Heavily Played - $100
Damaged - $100
Near Mint Spanish - $100
Lightly Played Spanish - $100
Moderately Played Spanish - $100
Heavily Played Spanish - $100
Damaged Spanish - $100
Foil Prices
Near Mint Foil - $600
Lightly Played Foil - $500
Moderately Played Foil - $400
Heavily Played Foil - $400
Damaged Foil - $300
Near Mint Foil Spanish - $600
Lightly Played Foil Spanish - $500
Moderately Played Foil Spanish - $400
Heavily Played Foil Spanish - $400
Damaged Foil Spanish - $300