Ghostrick Jiangshi (SHSP-EN020) [Shadow Specters]

Cannot be Normal Summoned, unless you control a "Ghostrick" monster. Once per turn: You can change this card to face-down Defense Position. When this card is flipped face-up: You can add from your Deck to your hand, 1 "Ghostrick" monster whose Level is less than or equal to the number of "Ghostrick" monsters you control. You can only use this effect of "Ghostrick Jiangshi" once per turn.