The fully unlocked “Collective Might” green and white deck. On the city-world of Ravnica, the Selesnya Conclave believes in the collective power of community and combined effort. Armies of saprolings are the backbone of this deck, which seeks to overwhelm the opponent with superior numbers. Additional content for Magic: The Gathering — Duels of the Planeswalkers 2013. Requires Magic 2013 Expansion.