This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by removing 1 "Vampire Lord" on your side of the field from play. Discard 1 Zombie-Type monster from your hand to the Graveyard to select and Special Summon 1 Zombie-Type monster from your Graveyard with a Level less than the discarded Zombie-Type monster. You can only use this effect once per turn.