It especially would have made sense, given how short that particular Campaign is
And being able to get rid of level 4 monsters all at once can give you a serious advantage in a duel
Numeron Wall X DARK Level 1 [ Fiend / Effect ] ATK 0 DEF 0 If you control no cards, except "Numeron Wall(s)" (Quick Effect): You can send this card from your hand or field to the GY
With this decks specialty in sending things to the graveyard, this card shines in banishing itself from the graveyard to either add a level 5 or higher Zombie monster to the hand, or if Zombie World is already on the field, you get to special summon it straight to the field
Of course, it's dedicated support Dark Summoning Beastand Paradise Lost, but it's quite interesting that it stands out from cards that don't seem to have much to do with it, such as Fusion Conscription, Dark Gaia, and Shadow Dystopia
This deck took advantage of the power cards of the era like Graceful Charity, Delinquent Duo and Pot of Greed, alongside the power of Scapegoat to facilitate the summon of power cards like Thousand-Eyes Restrict for ultimate control