Gnat Miser

Hand-size attrition is one of the quietest axes in the game, and this is among the bluntest tools for working it: a body cheap enough to ignore, shaving a card off every opponent's ceiling for as long as it lives. The math only matters once an opponent is holding seven cards at cleanup, but stack it (with effects that punish a full grip, or simply with a second copy) and you start forcing discards every end step, turning their excess draws into a slow bleed rather than a resource. It is the discard end of the deck-out and grip-pressure plan that black has flirted with for ages, where the goal is not to kill the opponent's life total but to starve their hand of options. The 1/1 Rat Shaman frame is incidental; nobody runs this to attack. What it represents is a design willing to attach a permanent, asymmetric constraint to a one-drop that does nothing the turn it lands, betting that the opponent's own card advantage becomes a liability over a long enough game. That bet rarely pays off in a vacuum, which is exactly why the effect lives on a creature this disposable: the friction is meant to add up, not to stand alone.