If you would lose unspent mana, that mana becomes black instead.
At the beginning of your precombat main phase, look at the top card of your library. You may reveal that card if it has three or more colored mana symbols in its mana cost. If you do, add three mana in any combination of colors and put it into your hand. If you don't reveal it, put it into your hand.
Near Mint - $300
Lightly Played - $200
Moderately Played - $200
Heavily Played - $200
Damaged - $200
Near Mint Spanish - $300
Lightly Played Spanish - $200
Moderately Played Spanish - $200
Heavily Played Spanish - $200
Damaged Spanish - $200
Foil Prices
Near Mint Foil - $500
Lightly Played Foil - $400
Moderately Played Foil - $300
Heavily Played Foil - $300
Damaged Foil - $200
Near Mint Foil Spanish - $500
Lightly Played Foil Spanish - $400
Moderately Played Foil Spanish - $300
Heavily Played Foil Spanish - $300
Damaged Foil Spanish - $200