Creatures you control get +X/+0, where X is the greatest number of consecutive nonland, nontoken permanents in a mana curve you control. (For example, if you have permanents with mana value 3, 4, and 5, creatures you control get+3/+0. If you're missing 4, they only get +1/+0.)
Near Mint - $68.40
Lightly Played - $54.70
Moderately Played - $47.90
Heavily Played - $41.00
Damaged - $34.20
Near Mint Spanish - $68.40
Lightly Played Spanish - $54.70
Moderately Played Spanish - $47.90
Heavily Played Spanish - $41.00
Damaged Spanish - $34.20