Sepulcher Ghoul

A sacrifice outlet that pumps itself is a common-slot fixture, but the once-per-turn clamp is what keeps this one from ever becoming an engine. Most free sac outlets let you feed the graveyard as fast as your board allows: Viscera Seer draws, Carrion Feeder grows without limit. This one deliberately caps at a single activation, so it will never eat your whole team in one alpha strike and can only convert one dying body into a +2/+2 swing. That restriction sets the ceiling. As an outlet it is honest and slow, offering a mana-free trigger for decks that want creatures dying (aristocrats payoffs, death triggers, graveyard fodder) without the risk of spiraling out of control. The body attached to that outlet is modest, a 2/1 that occasionally hits for four when you have expendable bodies to spend. The design solves the standard problem for a cheap black creature: give it a way to turn a chump blocker or a spent token into damage, but rate-limit it so it never becomes more than the sum of one sacrifice per turn. It fills a humble role, a repeatable outlet for creatures that would rather not pay for anything fancier, and it does not pretend to be more.