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.)
"Hup, two, three, four,
Dunno how to count no more."
Near Mint - $13,900
Lightly Played - $11,100
Moderately Played - $9,700
Heavily Played - $8,400
Damaged - $7,000
Near Mint Spanish - $13,900
Lightly Played Spanish - $11,100
Moderately Played Spanish - $9,700
Heavily Played Spanish - $8,400
Damaged Spanish - $7,000
Foil Prices
Near Mint Foil - $28,500
Lightly Played Foil - $22,800
Moderately Played Foil - $20,000
Heavily Played Foil - $17,100
Damaged Foil - $14,300
Near Mint Foil Spanish - $28,500
Lightly Played Foil Spanish - $22,800
Moderately Played Foil Spanish - $20,000
Heavily Played Foil Spanish - $17,100
Damaged Foil Spanish - $14,300