Zombie-Type Support

Name: Graveyard Crawler
Level: 7
Attribute: Dark
Type: Zombie
ATK: 2100
DEF: 0
Effect: This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except while your opponent controls 3 or more monsters. You can banish 1 Zombie-Type monster in your Graveyard to increase the ATK of this card by 500, until the End Phase. Once per turn, you can discard 1 Zombie-Type monster to return all Set cards to their owners' hand.Cards and effects cannot be activated in response to this effect. If this card leaves the field, select 1 Zombie-Type monster in your Graveyard and Special Summon it.

I'm not sure if it's good for Zombies, but I hope so

Name: Graveyard Crawler

Once per turn, you can discard 1 Zombie-Type monster to return all Set cards to their owners' hand.Cards and effects cannot be activated in response to this effect.

It's almost better than Kasha...

If this card leaves the field, select 1 Zombie-Type monster in your Graveyard and Special Summon it.

Discard Moroi. Send everything away. Tribute this for Maiden of the Nightshade. Special Summon Moroi. :3