[REQUIREMENT] You can activate this by sending 1 Spell/Trap Card from the hand to the GY.
[EFFECT] Choose 3 Pyro monsters in your GY whose total Levels are the same as [The total number of Levels of Level 8 or lower face-up Attack Position monsters your opponent controls] and shuffle them back into the Deck. Then, destroy all Level 8 or lower face-up Attack Position monsters your opponent controls. During this turn, only 1 monster you control can attack.
Atom 1.0
