Its health, like any other Dungeon Mobs, scale on which floor they spawn in. It can also have modifiers such as Healthy, Flaming, Stormy, Speedy or Fortified. Healthy increases the mob's ❤ Health. Fortified increases the mob's ❈ Defense. Flaming makes melee attacks light the player on fire. Speedy makes the mob move much faster. Stormy makes the mob strike lightning on nearby players, dealing ✷ True Damage.
Tank Zombies walk slowly towards nearby players and try to hit them. They are immune to ⬱ Knockback, and have high ❁ Damage reduction. They deal large amounts of ⬱ Knockback to players.