Blood Reckoning

A tax on aggression the attacker can never quite refuse to pay. The effect is a passive deterrent: it does not stop the attack, it does not shrink the attacker, it just bleeds the attacking player a point of life for committing to combat against you. Crucially, that is life loss, not damage: it cannot be prevented by the usual combat-fog and damage-prevention tools, and a four-wide alpha strike drops the attacker four points before blocks are even declared. Punishing width and tempo, the two resources aggressive decks lean on hardest, is the entire design, and the controller never has to interact in combat to collect. The lineage runs through enchantments that price the swing itself, Hissing Miasma and Caltrops among them, but scoping this one to attacks aimed at you or your planeswalkers (rather than any combat anywhere) keeps it pointed squarely at self-defense rather than board policing. The trade-off is patience. Against a deck that needs only a few large attackers to close, one life per swing is a rounding error; against a go-wide swarm, the math compounds fast enough to turn a lethal turn into a stalled board and a dead opponent. It rewards a controller willing to sit behind it and let the attacker's own aggression do the work, an enchantment that hands the opponent a choice between standing down and slowly killing themselves.