Asterism Effect

You may only cast this card if you have a 《Prism Dragon》 on your field.

[Cast Cost] [Discard five cards from your hand]

[Counter] Choose and use one of the following two.

• For this turn, all monsters on your field cannot be destroyed.

• Until the beginning of your opponent's next turn, you cannot lose the game. (The game continues even if your life becomes 0 or your deck is empty.)