Your search for "Shapeshifter's Marrow 58" revealed the following:
Shapeshifter's Marrow (FUT) from Future Sight, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Chippy Card Text:At the beginning of each opponent's upkeep, that player reveals the top card of his or her library. If it's a creature...
Shapeshifter's Marrow (Foil) (FUT) from Future Sight, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Chippy Card Text:At the beginning of each opponent's upkeep, that player reveals the top card of his or her library. If it's a...