Knowledge Exploitation 38/150 (Morningtide)

Prowl {3}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.) Search target opponent's library for an instant or sorcery card. You may cast that card without paying its mana cost. Then that player shuffles.

NM - $14.50
LP - $11.50
MP - $9.00
HP - $6.00
DMG - $3.00