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.)
"Is that your coat of arms? Looks more like a shawl of branches to me!"
—Andreas the Imprudent, last words
Near Mint - £19.90
Lightly Played - £16.90
Moderately Played - £14.00
Heavily Played - £10.00
Damaged - £6.00
Near Mint Non English - £19.90
Lightly Played Non English - £16.90
Moderately Played Non English - £14.00
Heavily Played Non English - £10.00
Damaged Non English - £6.00