XY11-Br: Cruel Traitor is a Pokémon expansion with set code ja-xy11-br. The Trademeup catalog tracks 61 cards from this set. Release date: Jun 17, 2016. Singles from this set currently range from €2.77 to €23.57. The most expensive card tracked right now is Yveltal BREAK at €23.57. Expansions released around the same time: League & Championship Cards and XY11-Bb: Fever-Burst Fighter.
