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." —Mogg march
Near Mint - $22.40
Near Mint Non-English - $22.40
Lightly Played - $20.20
Lightly Played Non-English - $20.20
Played - $15.70
Played Non-English - $15.70
Heavily Played - $13.50
Heavily Played Non-English - $13.50
Damaged - $11.20
Damaged Non-English - $11.20
Foil Prices
Near Mint Foil - $48.20
Near Mint Foil Non-English - $48.20
Lightly Played Foil - $43.40
Lightly Played Foil Non-English - $43.40
Played Foil - $33.70
Played Foil Non-English - $33.70
Heavily Played Foil - $28.90
Heavily Played Foil Non-English - $28.90
Damaged Foil - $24.10
Damaged Foil Non-English - $24.10