Skullcage

Most punisher cards offer the opponent a clean binary: take the damage or do the thing the controller wants. This one carves out a narrow lane and burns anyone standing outside it. The opponent is safe only at exactly three or four cards in hand, which is the unusual part of the design: not "fewer than" or "more than" some threshold, but a two-card window that punishes both the hoarder sitting on a full grip and the topdeck-mode aggressor running on fumes. The damage is small, two per upkeep, but it accrues every turn the opponent's hand is the wrong size, and managing that band is genuinely awkward when your draw step keeps pushing you out of it. The trouble has always been that the controller hands the steering wheel to the opponent. A player who can dump or refill at will simply lives in the safe zone, and against decks that naturally hover at three or four cards the artifact does nothing at all. That is the standing problem with reactive punishers: their power depends on the opponent's inability or unwillingness to comply, and a four-mana clock of two per turn rarely justifies the cost of forcing the issue. Hand-size punishers like this one read as elegant constraints on paper and tend to underdeliver in practice, because the cheapest counterplay is usually just drawing a card.