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 - $16.75
Near Mint Non-English - $16.75
Lightly Played - $16.00
Lightly Played Non-English - $16.00
Moderately Played - $13.50
Moderately Played Non-English - $13.50
Heavily Played - $10.25
Heavily Played Non-English - $10.25
Damaged - $8.50
Damaged Non-English - $8.50
Foil Prices
Near Mint Foil - $28.25
Near Mint Foil Non-English - $28.25
Lightly Played Foil - $26.75
Lightly Played Foil Non-English - $26.75
Moderately Played Foil - $22.50
Moderately Played Foil Non-English - $22.50
Heavily Played Foil - $17.00
Heavily Played Foil Non-English - $17.00
Damaged Foil - $14.25
Damaged Foil Non-English - $14.25