Darkness Energy (168/147) [Sun & Moon: Burning Shadows] Water[-20] When a monster(s) you control

When a monster(s) you control is targeted for an attack or by an opponent's card effect (except during the Damage Step): You can destroy all cards your opponent controls

Set: XY: Black Star Promos Type: Dragon Rarity: Promo Retreat cost: Colorless

If this card attacks your opponent directly and reduces their Life Points to 0

If the activation of this card in its owner's possession was negated by your opponent's card effect and sent to your GY: You can discard 1 card

then you can send 1 Level 7 "Red-Eyes" monster from your Deck to the Graveyard

Darkness Energy (168/147) [Sun & Moon: Burning Shadows] Water[-20] When a monster(s) you controlSet: Sun & Moon: Burning Shadows Type: Basic Darkness Energy Rarity: Secret Rare