zombie werewolf yugioh card Haunted Zombies - DIFO-EN076 - 1st Edition - Dimension Force NM may be 1st or Unlimited Edition Zombie Werewolf - Yugipedia

its going to get the most expensive permanent the opponent controls, every time

The next spell they cast this turn has cascade. (When they cast their next spell, they exile cards from the top of their library until they exile a nonland card that costs less

Card Text: When this card inflicts battle damage to your opponent: You can Special Summon 1 Level 4 or lower "Atlantean" Sea Serpent monster from your Deck, except "Atlantean Marksman"

But it's got a bit of a twist: Not only is it a 4/4 creature with trample and haste, which is RIDICULOUS value for a creature, but it's something that takes you deeper into end game too, once you hit the 7 mana threshold