Infernity Suppression (PHRA-EN075)

If you have no cards in your hand, you can activate this card the turn it was Set. When your opponent activates a monster effect while you control an "Infernity" monster: Negate the effect, then, you can inflict damage to your opponent equal to the activating monster's Level x 100. You can only activate 1 "Infernity Suppression" per turn.