Curse of Thirst
The whole effect is a feedback loop you have to build by hand. One Curse attached deals one damage a turn, which on its own is a five-mana enchantment that asks the better part of a game to matter. The payoff scales with every other Curse stuck to the same player, so the card is openly a build-around for a deck that treats Curses as a subtheme rather than a one-off, each new aura raising the recurring tick on this one. That makes it a card about commitment to an archetype that rarely had the depth to support it: the Curse pool across black's history is thin, and most of those auras want to point at the same head for the payback to compound. The damage also lands on its own schedule, at the enchanted player's upkeep, which keeps it slow and inevitable rather than reactive. It cannot punch through anything fast, and it does nothing the turn it lands; what it offers is a clock that climbs in a multi-Curse shell and stays a footnote everywhere else. As a design it sits at the honest end of the Curse cycle: the reward is real, but it is gated entirely behind how many other Curses you were willing to assemble first.
