Duel Decks: Nissa vs. Ob Nixilis is the 18th set in the Duel Decks series. It was released on September 2, 2016.
The two decks represent the battle between Zendikar's protector, Nissa, and its would-be destroyer, Ob Nixilis. The ready-to-play, sixty-card decks showcase cards from across Magic's history, including two premium Planeswalker cards with new artwork and four other cards with new artwork (Ambition's Cost, Doom Blade, Crop Rotation and Wood Elves).
The Duel Decks include a Magic “learn to play” guide, a strategy insert, a spindown life counter and 5 tokens each.