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 - $15.40
Lightly Played - $12.30
Moderately Played - $10.80
Heavily Played - $9.20
Damaged - $7.70
Near Mint Spanish - $15.40
Lightly Played Spanish - $12.30
Moderately Played Spanish - $10.80
Heavily Played Spanish - $9.20
Damaged Spanish - $7.70
Foil Prices
Near Mint Foil - $34.90
Lightly Played Foil - $28.00
Moderately Played Foil - $24.50
Heavily Played Foil - $21.00
Damaged Foil - $17.50
Near Mint Foil Spanish - $34.90
Lightly Played Foil Spanish - $28.00
Moderately Played Foil Spanish - $24.50
Heavily Played Foil Spanish - $21.00
Damaged Foil Spanish - $17.50