Morgue Thrull

A self-mill engine wearing a creature's body, built in an era when filling your own graveyard was a cost most decks paid reluctantly rather than a resource they wanted. The design is honest about its single function: a 2/2 that exists to be sacrificed for three cards off your library into the graveyard, no card advantage, no targeting flexibility, just a one-shot delivery system. The shape worth noting is the timing. Because the sacrifice is an activated ability with no tap requirement and no mana cost, it can be activated at any point you hold priority, which lets it dump cards in response to whatever wants them: a reanimation spell on the stack, a graveyard-counting effect, an upkeep payoff that rewards a stocked yard. The body itself is incidental; the card is really a button that turns a battlefield permanent into graveyard fuel at instant speed. That places it among the enablers whose value lives entirely in a payoff elsewhere in the deck, doing nothing in a vacuum and everything in a graveyard shell. The mill here points inward, a deliberate self-feeding rather than an assault on an opponent's library, which marks it as a tool from before self-mill had its own dedicated archetypes to slot into.