Dominion: Guilds & Cornucopia combines the Dominion: Guilds and Dominion: Cornucopia small box expansions into a single large box expansion.
This is an expansion for the 2009 Spiel Des Jahres winner – Dominion – and is not a stand alone game.
Dominion: Guilds (originally the fifth expansion) consists of 13 new Kingdom cards, with some of these cards allowing you to get more out of them by paying extra when you buy them. In addition, this expansion contains coin tokens that you can save to spend later.
Dominion: Cornucopia (originally the eighth expansion) consists of 13 new Kingdom cards, plus 5 unique cards which are focused on variety, with cards that reward you for having a variety of cards in your deck, in your hand, and in play, in addition to cards that help you get that variety.