Voodoo Doll

Pin counters are the hinge of the design, and they run in exactly the wrong direction for the controller. Every upkeep adds one, ratcheting the artifact toward a self-immolating end step where it destroys itself and burns its controller for the running total. The activated ability is the release valve, but a partial one: it does not strip the counters, it only taps the artifact, and the end-step trigger only checks whether the doll is untapped. Tap it before your end step and you dodge the destruction for one more turn while the counters (and the cost to fire them) keep climbing. The cost structure is deliberately punitive, with the X paid twice, so the doll asks you to sit on a loaded gun for several turns before it is worth firing, all while the upkeep trigger keeps raising the stakes of forgetting to tap it. Few cards of its vintage are built so plainly around a maintenance puzzle rather than a rate: the math is the gameplay, the timing of when to fire is the decision, and the punishment for misreading either is written directly into the card. The template (a counter that accrues on its own, a destruction clause that punishes inaction, an activation that buys time by keeping the artifact tapped) is an unusually demanding one for its era, asking the controller to manage a threat aimed at both players from the same engine.