If a card(s) on the field is destroyed by card effect, except by Unchained Abomination (except during the Damage Step): You can target 1 card on the field; destroy it. When another monster is destroyed by battle: You can target 1 card on the field; destroy it. During the End Phase: You can target 1 card on the field; destroy it. You can only use each effect of Unchained Abomination once per turn.