Duel Decks: Izzet vs. Golgari is the 10th set in the Duel Decks series. It was released on September 7, 2012, with an MSRP of US$19.99.
Izzet vs. Golgari contains two preconstructed theme decks, one centered on the Izzet League guild of Ravnica and the other around the Golgari Swarm guild. Izzet vs. Golgari depicts the struggle for supremacy, of the Ravnican undercity and of the wider Ravnica, between two guilds, ultimately stemming from ideological considerations.