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 - $22.30
Near Mint Non-English - $22.30
Lightly Played - $20.10
Lightly Played Non-English - $20.10
Played - $15.60
Played Non-English - $15.60
Heavily Played - $13.40
Heavily Played Non-English - $13.40
Damaged - $11.20
Damaged Non-English - $11.20
Foil Prices
Near Mint Foil - $50.30
Near Mint Foil Non-English - $50.30
Lightly Played Foil - $45.30
Lightly Played Foil Non-English - $45.30
Played Foil - $35.20
Played Foil Non-English - $35.20
Heavily Played Foil - $30.20
Heavily Played Foil Non-English - $30.20
Damaged Foil - $25.20
Damaged Foil Non-English - $25.20