Laboratory Brute

The four cards it buries in your own yard are the reason it exists; the 3/3 that carries them there is close to incidental. This is mill turned inward: a self-mill enabler wearing an ordinary creature's frame, built for graveyard decks that want fuel rather than a clock against the opponent's library. The split between body and trigger does real work. A 3/3 keeps it from being a dead card in the games where the graveyard plan never assembles, while the enters trigger fires once, on arrival, asking no further investment. There is no looping, no recursion, no payoff stapled on: the card does exactly one thing and hands the value to whatever delirium, flashback, or reanimation engine is sitting beside it. Self-mill creatures live or die by that division of labor, and this one sits at the modest end, enough mass to move a graveyard count attached to a creature too small to close a game alone. It fills its own yard rather than threatening anyone else's, which means it only earns its slot in a shell assembled to spend what it buries. Outside that shell it is a plain-rate four-drop; inside it, the four cards it dumps are the entire pitch.