Enchant creature Enchanted creature gets +X/+Y, where X is half the number of Forests you control, rounded down, and Y is half the number of Forests you control, rounded up.
NM-Mint - $16.70
Lightly Played - $15.00
Moderately Played - $13.40
Heavily Played - $11.70
Damaged - $8.40
NM-Mint Non English - $16.70
Lightly Played Non English - $15.00
Moderately Played Non English - $13.40
Heavily Played Non English - $11.70
Damaged Non English - $8.40