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 - $27.100
Lightly Played - $21.700
Moderately Played - $19.000
Heavily Played - $16.300
Damaged - $13.600
Near Mint Spanish - $27.100
Lightly Played Spanish - $21.700
Moderately Played Spanish - $19.000
Heavily Played Spanish - $16.300
Damaged Spanish - $13.600
Foil Prices
Near Mint Foil - $422.500
Lightly Played Foil - $338.000
Moderately Played Foil - $295.800
Heavily Played Foil - $253.500
Damaged Foil - $211.300
Near Mint Foil Spanish - $422.500
Lightly Played Foil Spanish - $338.000
Moderately Played Foil Spanish - $295.800
Heavily Played Foil Spanish - $253.500
Damaged Foil Spanish - $211.300