The Rouze Cards are mystical cards used by the Riders of Kamen Rider: Spade Warrior. Rouze Cards are obtained when an Undead has been defeated, which is indicated when their Ouroboros Buckle opens revealing what category & suit they belong to, & has been sealed away by either a Rider using a Proper Blank card, Common Blank card or the Stone of Sealing. Normally, Category 2-Queen Cards have the Ouroboros patch on the picture of the species which they resemble.