Zombies often care about the graveyard and are ripe for sacrificing since they come in great numbers, which you can easily exploit with Undead Augur and Archghoul of Thraben
So, what makes this meta tick
You can put together in-color graveyard payoffs like Archfiend of Sorrows, Tizerus Charger, Lucid Dreams and Young Necromancer, and theres enough overlap with the delirium and madness cards to just throw in things like Raving Visionary and Mystic Redaction
It is definitely kind of rough the turn you play it, since its such a terrible blocker, but by your upkeep I think youll be reasonably happy with its performance
Najeela checks almost all the boxes for a top-level Commander
This new spell allows you to make someone shuffle a problematic artifact or creature back into their library and then discover equal to its mana value