As long as the top card of your graveyard is a creature card, Volrath's Shapeshifter has the full text of that card and has the text "{2}: Discard a card." (Volrath's Shapeshifter has that card's name, mana cost, color, types, abilities, power, and toughness.) {2}: Discard a card.
NM-Mint - $4.70
Lightly Played - $4.20
Moderately Played - $3.70
Heavily Played - $3.30
Damaged - $2.40
NM-Mint Non English - $4.70
Lightly Played Non English - $4.20
Moderately Played Non English - $3.70
Heavily Played Non English - $3.30
Damaged Non English - $2.40