Butterfly Dagger - Elma!
"First, add Butterfly Dagger - Elma to my hand," Kira said. "Then Royal Magical Library has three Magic Counters.
This card can remove three of its own counters to draw one card from the Deck. Therefore, I remove all the counters on the library and draw one card."
Kira said, "Then I equip Butterfly Dagger - Elma to Iron Knight Gearfried!"
"Butterfly Dagger - Elma's effect. The monster equipped with this card gains 300 ATK.
I equip Butterfly Dagger to Iron Knight Gearfried, increasing its ATK by 300."
Iron Knight Gearfried, ATK 1800 → ATK 2100
"Then Iron Knight Gearfried's effect: when this card is equipped with an Equip Card, destroy that Equip Card immediately."
The moment the dagger landed in Iron Knight's hand, it exploded with a bang into golden fragments and vanished from the Field.
"Butterfly Dagger's other effect is that when this card equipped to a monster is destroyed, it returns directly to its owner's hand."
Kira waved the Equip Card in his hand. It had returned to his hand once more.
"Then Butterfly Dagger - Elma activates again!"
Now the Evil God understood.
This was an Infinite Loop!
Every time Butterfly Dagger activated, Royal Magical Library gained one Magic Counter. Then, due to Iron Knight Gearfried's effect, the instant Butterfly Dagger was equipped to Iron Knight, it would be destroyed. And due to Butterfly Dagger's own effect, it would recover itself.
This allowed Butterfly Dagger to activate infinitely, accumulating countless Magic Counters for Royal Magical Library. Royal Magical Library could draw one card for every three counters it removed, which meant it could ultimately draw countless cards.
An infinite hand meant infinite possibilities. Though the Three Evil God Cards claimed to be invincible and feared no opponent, that was only