Gatecrash has two Event Decks: Thrive and Thrash (a Simic colored deck) and Rally and Rout (Boros).
Event Decks are meant as a bridge from casual to competitive play, and this pair could be the most competitive Wizards of the Coast has ever printed. With cards like Thragtusk, Dungeon Geist, Wolfir Silverheart, Strangleroot Geist, and Rancor in Thrive and Thrash, you can expect the Simic Event Deck to be competitive right out of the box. The same is true for Rally and Rout, featuring such hits as Champion of the Parish, Thalia, Guardian of Thraben, Silverblade Paladin, Spark Trooper, and Boros Charm.
See the full decklists and official announcement for the Gatecrash Event Decks at DailyMTG. These decks are currently available for preorder, and orders for them will be shipped February 22, 2013. You can preorder both Gatecrash Event Decks right here at StarCityGames.com