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.

Exile the top seven cards of your library. Until end of turn, you may cast spells from among them.

If this spell was cast from your hand, add ten mana of any one color.