Fixed cards rarities and added cards description and stage (#62)

Signed-off-by: Avior <florian.bouillon@delta-wings.net>

data/Sword & Shield/Darkness Ablaze/18.ts

@@ -93,6 +93,12 @@ const card: Card = {
 		reverse: true,
 		holo: true,
 		firstEdition: false
+	},
+
+	stage: "Stage1",
+
+	description: {
+		en: "It will do anything to win, taking advantage of every opening and finishing opponents off with the small claws on its front legs."
 	}
 }