Sapphire Collector is a rare Creature — Human Mercenary card from Alchemy: Outlaws of Thunder Junction (YOTJ), collector number 13.
Prowess When you cast your second noncreature spell in a turn, conjure a card named Mox Sapphire into your hand. This ability triggers only once. {2}{U}: Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.