Cry of Contrition

Discard spells live or die on tempo: you pay your mana early to strip a card the opponent has not yet committed, and the exchange is one-for-one at best. Haunt breaks that arithmetic by deferring half the payment. The first discard resolves like any other; then the spell exiles itself onto a creature, and a second discard waits in reserve, triggered the moment that body dies. You are not paying twice for the same effect so much as planting a downstream trigger and letting combat, removal, or your own sacrifice outlet collect it later. That structure is what makes this more than a one-mana discard at a discount: the second discard arrives at a point in the game you do not control but can engineer, and crucially it does not have to target the same player, so a haunt parked on an opponent's creature taxes them when that body finally trades away. The catch is specific to the keyword: the haunt cashes out only when the haunted creature is put into a graveyard from the battlefield, so a bounced or exiled body strands the trigger with the discard never coming. The payoff is finite (one deferred trigger, then the card is spent), but that single delayed discard is the whole pitch: a throwaway one-drop that asks for a mana now and promises a card later, payable only when the battlefield cooperates with a death rather than some other kind of departure.