Ghost Sleeper, the Underworld Princess

If this card is sent to the GY: You can add 1 "Ghost Fusion" from your Deck to your hand. If this card is in your GY, except the turn it was sent there: You can banish this card and discard 1 card, then target 1 of your banished Level 4 or higher Zombie monsters; add it to your hand. You can only use each effect of "Ghost Sleeper, the Underworld Princess" once per turn.