Cephalid Sage

Threshold paid off cleanest when the reward was an on/off switch rather than a sliding discount, and this Octopus runs the switch about as cleanly as the early graveyard-matters designs managed. With fewer than seven cards in the yard, the 2/3 is an inert blocker that does nothing the turn it lands. Once the count is met, the same body arrives drawing three and discarding two: a net card gained, plus two more cards shoveled into the graveyard, exactly where this kind of deck wants them. The structural point is that the payout is conditional, not folded into the rate, which is what stops a four-mana 2/3 from reading as a mistake; it only ever rewards the player who has already done the work of stocking the bin. The detail that elevates it past a one-time refuel is repeatability: as long as threshold is active, any blink or recursion effect that returns the Sage to the battlefield re-fires the entire enters trigger. That makes it a reusable engine rather than a single card-advantage spike. A lone cast smooths a hand; a loop that keeps flickering or recurring the Sage turns it into a repeatable draw-three, discard-two, with the discard half continually refeeding whatever else cares about a loaded graveyard. It rewards reaching the threshold count early with a creature that keeps cashing in long after the line is crossed.