Secret Sword (Archetype)

"Secret Sword" (秘剣 Hiken) are a series of Impact cards with Secret Sword in their name. Currently unique to Katana World. They involve putting a Secret Sword into the soul of a Lethal Formation card and casting it from there after the opponent attacks you in a certain way.

Sets with Secret Sword Cards

 * Booster Set 2: Cyber Ninja Squad
 * Booster Set 5: Break to the Future
 * Trial Deck 5: Ninja Onslaught

List of Blue Sky Knights Cards

 * Secret Sword, Comet
 * Secret Sword, Glittering Star
 * Secret Sword, Lethal Formation
 * Secret Sword, Moon Fang
 * Secret Sword, Morning Star
 * Secret Sword, Shooting Star
 * Secret Sword, Star Crusher
 * Super Lethal Formation

List of Support Cards

 * Secret Sword, Comet
 * Secret Sword, Glittering Star
 * Secret Sword, Morning Star