World Linking Key the First, Drago-Uno (RRR)

You may only cast this card during your opponent's turn, and you have five or more different world names on cards in your drop zone. [Cast Cost] [If there are one or more cards on your field, put all of them into your drop zone] [Counter] Discard your entire hand, and draw six cards. Then, for this turn, you cannot be dealt damage. At the end of your next turn, you lose the game. You may only cast "A Key That Connects the World, Dragouno" once per fight.