A great resource site for Deadlands: Doomtown CCG. Features official FAQ, rulings and rules, deck lists, deckbuilder. The site is quite old and hasn't been updated in a while, but it's still contain valuable information.

Plus this is a great game, as the site reads:
The year is 1876, but the history is not our own. The Civil War grinds on, neither side able to establish a clear advantage. A huge earthquake dropped California into the sea, forming an amazing labyrinth of sea-canyons known as the Great Maze. The Sioux Nations have reclaimed the Dakotas. The Coyote Confederation dances the Ghost Dance on the High Plains. Monsters stalk the deserts and prowl the dark streets of the boomtowns. And the dead walk among us.

Welcome to the Weird West!