You can use the [(1)st] effect with this card’s name only once per turn.
(1) If your opponent Special Summons a monster(s) face-up: You can discard this card, then target 1 of those face-up monsters; negate that target’s effects (for the rest of this turn), and if you do, if it leaves the field this turn, inflict damage to its controller equal to its original ATK.
Atom 1.0
