Part II: The Clans A thousand years can change many things, and the Great Clans have changed greatly over that time. The Crab Clan For a thousand years, the Crab Clan has performed its duty of guarding the Emerald Empire against the horrors of the Shadowlands. Its samurai are among the most highly trained in Rokugan. Their schools teach the ways that a small army can defeat a larger one, for it is often the case that when the armies of the Shadowlands assault the fortresses of the Crab, their samurai are outnumbered by at least three to one. The Crane Clan The Dragon Clan The Lion Clan