Redcap Gutter-Dweller
Sacrifice payoffs usually cash a death into an immediate effect: a drain point, a token, a trigger that fires and fades. This one converts each death into something that lingers. Feed it a creature at your upkeep and it grows a size while exiling a card from your deck that you may play that same turn (and because the clause says play, not cast, a flipped land goes straight down for free). The two Rats it makes on arrival are seed money, disposable bodies bred specifically so the engine has something to eat before you start committing real creatures to the grinder. Most value engines want a full board before they pay out; this one supplies its own opening fodder and asks only that the chain keep running turn over turn. The governors live in the same clause. The sacrifice happens once per upkeep, it must eat another creature (never itself), and it scales only in step with your creature supply, so how far it climbs comes down to how deep your bodies run and nothing else. Menace on a body that swells every upkeep is what pushes the apparatus past a pure engine into a clock: the thing you build advantage with is the same thing threatening to close the game, and each creature you feed it makes that threat harder to block.
