Psi-Curse (Shatterfoil) (BP03-EN217) - Battle Pack 3: Monster League 1st Edition

When a Psychic-Type monster you control is destroyed by battle with an opponent's attacking monster and sent to the Graveyard: Target the opponent's monster; destroy that target, and if you do, inflict damage to your opponent equal to the Level of your destroyed Psychic-Type monster × 300.