losing the game in some ways. Release history The history, story, and organized play rules of L5R are divided into a series of arcs. The beginning of each new arc redefines which cards may be used in tournament formats. Arcs typically begin with the publication of a base set of 300 or more cards, primarily reprinted older cards, followed by the release of several expansions of 50 to 180 new cards, and one promotional set, of variable size, which is sold directly to players by the manufacturer. Often, the last few expansions of one arc will be legal for play in the next arc; such cards are referred to as dual bugged, with circular indicators (bugs) at the bottom of the card indicating their legality.Learn to play sets are standalone releases that allow new players to be easily introduced to the game. Several learn to play sets have been released over the course of the game's history. Generally, these sets feature particular flavor text and promotional cards relating to a specific event in the storyline. The Clan War (Imperial Edition) The Clan War arc began in October 1995 with the release of Imperial Edition. It initially had six legal factions for play (Crab Clan, Crane Clan, Dragon Clan, Lion Clan, Phoenix Clan and Unicorn Clan). Later expansions added six more : the Naga and Scorpion Clan in Shadowlands, Toturi's Army and Yogo Junzo's Army in Anvil of Despair, and Yoritomo's Alliance and The Brotherhood of Shinsei in Crimson and Jade. The learn to play set Battle at Beiden Pass was released in November 1996. The arc (and the game as a whole) was originally intended to end with Time of the Void, but was extended due to its popularity and ended with the release of Scorpion Clan Coup. The Hidden Emperor (Jade Edition) This arc began in May 1998 with the release of Jade Edition. It contained originally all twelve factions playable at the end of the Clan War arc, to which were later added the Ninja in Dark Journey Home, the Ratlings in Heroes of Rokugan, and the Spirits in The Spirit Wars. Heroes of Rokugan was the first promotional set, depicting certain past figures of Rokugan's history. The learn to play sets were Siege of Sleeping Mountain (May 1999) and Storms over Matsu Palace (July 2000). The Four Winds (Gold Edition) This arc began in July 2001 with