Gravepurge

Most graveyard recursion hands you the threat now and lets you replay it; this instead loads your creatures onto your library in the order you choose, so the payback is delayed and sequenced rather than immediate. That distinction is the entire reason to run it over a more direct return spell. It answers the structural problem self-mill and graveyard-fill engines create: the bin fills with dead creatures while the library thins out, and reordering your next several draws spends one resource to refresh the other. The cantrip keeps you at parity so the reorder does not cost a card. There is also a defensive line. At instant speed, returning your own creatures to the library in response denies an opposing reanimation or graveyard-theft spell the targets it was counting on, and the draw means you do the disrupting without falling behind, which separates a clean hate piece from a tempo loss. None of these modes is flashy, and the effect is narrower than it first sounds: it wants you to reorder rather than reload, a line you have to already be set up to want. This is support for graveyard-centric black decks, not a standalone engine, built for the player who has committed to filling the yard and now needs a way to convert it back into draws.