Boardgamegeek https://boardgamegeek.com/boardgameexpansion/104139/lord-rings-card-game-massing-osgiliath
English - Released at GenCon 2011, The Massing at Osgiliath is a print-on-demand encounter deck (so, not a full expansion like the monthly decks) that is designed to be more difficult the more players you have. A POD deck is now available through the Fantasy Flight website for $15.
Official http://www.fantasyflightgames.fr/jeux/collection/le_seigneur_des_anneaux_lcg
French - Dans Le Seigneur des Anneaux LCG, les joueurs dirigent un groupe d’aventuriers essayant d’accomplir des quêtes périlleuses dans la Terre du Milieu.