Or an event. Yami Yugi's LV 50 appear: one card; UR Osiris the sky dragon, chance to get 3%. next mont Kaiba Seto's event LV 50 appear: UR Obelisk the tormentor 3% chance to get. and Yami Marik's event LV 50 appear (in the unlock event) 10% to get if you win. and you see a "card" icon.