2007 · ソースブック（プレイを拡張するルール／オプション）
Art of Defence II
A collection of 32 combat feats for the d20 System, expanding tactical options beyond basic melee attacks. The feats cover movement, leadership, teamwork, attacks of opportunity, and unusual ways to handle opponents, alongside options for characters using traditional weapons. They are designed for a range of character types and apply whenever combat becomes a central part of play.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。