Dimir Machinations (Ravnica: City of Guilds 84) - Uncommon

Look at the top three cards of target player's library. Exile any number of those cards, then put the rest back in any order.
Transmute (, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)