Your skill with handling a deck and your arcane talents allow you to turn mundane cards into weapons.
Benefit(s): You can throw a card as though it were a dart, with the same damage, range, and other features. You must use the Arcane Strike feat when throwing a card in this way, or else the card lacks the magical force and precision to deal lethal damage. A card is destroyed when thrown in this way.
Harrow cards are treated as masterwork weapons when thrown using this feat, but are still destroyed after they are thrown. A harrow deck can no longer be used as a fortune-telling device after even a single card is thrown.
A spellcaster with this feat can enhance a deck of cards as though it were a ranged weapon with 54 pieces of ammunition. This enhancement functions only when used in tandem with this feat, and has no affect on any other way the cards might be used.
Pathfinder Player Companion: The Harrow Handbook © 2014, Paizo Inc.; Authors: Crystal Frasier, Will McCardell, and David Schwartz.