XY trainer Kit (Suicune) is a Pokémon expansion with set code tk-xy-su. The Trademeup catalog tracks 32 cards from this set. Release date: Apr 27, 2016. Singles from this set currently range from €2.33 to €4.74. The most expensive card tracked right now is Piplup at €4.74. Expansions released around the same time: プレミアムチャンピオンパック EX×M×BREAK and XY trainer Kit (Pikachu Libre).
