Combine this card with "Zombie World" so that any Level 4 or lower monster can be Special Summoned from either your or your opponent's Graveyard.
If there is a second "Zombie Master" in your hand while one is on the field, discard the one in the hand and Special Summon it. The newly Special Summoned "Zombie Master" can then be used to Special Summon another Zombie-Type monster.
This card can also be used against Zombie Decks by using its effect to Special Summon your opponent's Level 4 or lower Zombie-Type monsters from their Graveyard to your side of the field.
Use this card to Special Summon "Bone Crusher" and destroy 1 Spell/Trap Card your opponent controls.