Duel porches are a series of theme porches that started in 2007 with Elves vs. Goblins. They contain two 60-card decks designed and created especially to be played against one another by a couple.
Cards showing up during these sets may be from any non-Un occur Magic history but they are within the post card framework, with a black border. Each set has its own expansion icon. The very first when you look at the series, Duel Decks: Elves vs. Goblins, contained eight rares, including two foil rares with alternate artwork. Later sets into the show altered this this to two foil mythic rares with alternate artwork, and between six and ten rares, as well as four non-foil cards with alternate artwork (aside from Divine vs. Demonic, which had five). A number of the mythic rares had been originally printed as rares, and possess been altered mythic standing for the duel deck. A few of the cards supply new flavor text.
Each ready illustrates a significant rivalry. Until Venser vs. Koth, the sets alternated between showing two rival factions, and two competing planeswalkers, and often link into current or future storylines. For instance, Elves vs. Goblins premiered through the tribal block of ; Jace vs. Chandra tied to the webcomic gasoline the Fire; and Phyrexia vs. the Coalition, Elspeth vs. Tezzeret, and Venser vs. Koth wrap to the Scars of Mirrodin block.