Manifest the top card of your library, then put X +1/+1 counters on it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Near Mint - $0.10
Lightly Played - $0.10
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
Near Mint Spanish - $0.10
Lightly Played Spanish - $0.10
Moderately Played Spanish - $0.10
Heavily Played Spanish - $0.10
Damaged Spanish - $0.10
Foil Prices
Near Mint Foil - $0.30
Lightly Played Foil - $0.20
Moderately Played Foil - $0.20
Heavily Played Foil - $0.20
Damaged Foil - $0.20
Near Mint Foil Spanish - $0.30
Lightly Played Foil Spanish - $0.20
Moderately Played Foil Spanish - $0.20
Heavily Played Foil Spanish - $0.20
Damaged Foil Spanish - $0.20