Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)
Near Mint - $13,200
Lightly Played - $10,500
Moderately Played - $9,200
Heavily Played - $7,900
Damaged - $6,600
Near Mint Spanish - $13,200
Lightly Played Spanish - $10,500
Moderately Played Spanish - $9,200
Heavily Played Spanish - $7,900
Damaged Spanish - $6,600
Foil Prices
Near Mint Foil - $21,600
Lightly Played Foil - $17,300
Moderately Played Foil - $15,100
Heavily Played Foil - $13,000
Damaged Foil - $10,800
Near Mint Foil Spanish - $21,600
Lightly Played Foil Spanish - $17,300
Moderately Played Foil Spanish - $15,100
Heavily Played Foil Spanish - $13,000
Damaged Foil Spanish - $10,800