You can only use this effect of “Cataclysmic Covenant” once per turn. When your opponent activates a card or effect: Negate the activation, and if you do, destroy that card. After that, you can Set 1 “Cataclysmic Covenant” Trap directly from your Deck. If you control a “Cataclysmic Covenant” monster, your opponent cannot negate this card’s activation.