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 - $99.000
Lightly Played - $79.200
Moderately Played - $69.300
Heavily Played - $59.400
Damaged - $49.500
Near Mint Spanish - $99.000
Lightly Played Spanish - $79.200
Moderately Played Spanish - $69.300
Heavily Played Spanish - $59.400
Damaged Spanish - $49.500