Ghostrick Specter

Cannot be Normal Summoned, unless you control a "Ghostrick" monster. Once per turn: You can change this card to face-down Defense Position. When a "Ghostrick" monster is destroyed by an opponent's card effect, or by battle with their attacking monster, and sent to your GY: You can Special Summon this card from your hand in face-down Defense Position, and if you do, draw 1 card.