2 Zombie monsters
If you would Tribute a monster(s) for a Tribute Summon, you can Tribute a Zombie monster(s) your opponent controls, even though you do not control it. You can only use each of the following effects of "Vampire Sucker" once per turn.
• You can target 1 monster in your opponent's GY; Special Summon it to your opponent's field in Defense Position, and if you do, it is treated as a Zombie monster.
• If a Zombie monster(s) is Special Summoned from the GY: Draw 1 card.