Use Timing
[Main Phase][Attack Phase]
Choose 1 card from your opponent's hand without looking, and your opponent reveals it. Then, if it is a level 1 SIGNI, put the top 3 cards of your deck into the ener zone.
If it is a level 2 SIGNI, you draw 3 cards.
If it is a level 3 SIGNI, banish 1 of your opponent's SIGNI.
If it is a level 4 SIGNI, put 1 of your opponent's SIGNI into the trash.
If it is a level 5 SIGNI, you discard 1 card from your hand.
If it was a spell, your opponent discards that card.