Destrier is a player's aid for the first edition of Chivarly & Sorcery. The book has about 20 pages and about 8 pages of cards to be cut out. The card system is for individual combat to simplify the combat system. Topics include time sequence outline, movement, conduct of melee, cavalry maneuvers, and explanation of the cards. A copy of Destrier is not needed in order to play Chivarly & Sorcery.