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.)
NM-Mint - $15.00
NM-Mint Non English - $15.00
Lightly Played - $14.20
Lightly Played Non English - $14.20
Moderately Played - $13.50
Moderately Played Non English - $13.50
Heavily Played - $12.00
Heavily Played Non English - $12.00
Damaged - $9.70
Damaged Non English - $9.70