You can only activate 1 card with this card’s name per turn. This card’s activation and effect cannot be negated.
(1) If you control a monster whose original name is “Slifer the Sky Dragon”: Destroy as many face-up monsters your opponent currently controls as possible, then, if this card was activated during your Main Phase, you can draw cards equal to the number of monsters destroyed and sent to your opponent’s GY by this effect, but you can attack with only 1 monster this turn.
Atom 1.0
