Morte Suprema Dominus

Morte Suprema Dominus
Attrib: Light
Type: Zombie/Effect
Level:12
Atk: 5000
Def: 2500
Cannot be Normal Summoned or Set. Cannot be Special Summoned except from the hand by returning 20 Zombie-type Monsters in your Graveyard to your deck. You can send 4 different Zombie-type Monsters in your Graveyard to the deck to destroy all other cards on the field. During the End Phase, send the top 4 cards of your deck to the Graveyard.

to

Morte Suprema Dominus
Attrib: Light
Type: Zombie/Effect
Level:12
Atk: 5000
Def: 2500
Cannot be Normal Summoned or Set. Cannot be Special Summoned except from the hand by returning 15 Zombie-type Monsters in your Graveyard to your deck. You can send 3 different Zombie-type Monsters in your Graveyard to the deck to destroy all other cards on the field. During the End Phase, send the top 4 cards of your deck to the Graveyard.

While it scared the shit out of everyone the first time it came out, it has ultimately seen no use, not even the day it was released. There has been no support to-date that could help this sluggish gamebreaker out, nor does it even work with any Zombie deck that has been made. Perhaps it could be adjusted a little?

Yes, mainly since duplicate spell is banned/errata'd.