Dreams of the Dead

Reanimation priced as a lease, with the rent escalating until you can no longer afford the tenant. Most graveyard recursion of its era either paid full cost up front or stopped at a single body; this enchantment instead sits in play as a repeatable spigot, willing to pull back any white or black creature for a cheap activation. The catch is that each returned creature arrives saddled with a cumulative upkeep that compounds every turn: the first payment is trivial, the third is ruinous, so the engine pushes you to use what you reanimate quickly rather than holding a board you cannot sustain. The exile clause is the cleverer piece of discipline. It shuts down the obvious abuse: return a creature, sacrifice it for value or let the upkeep kill it, then loop it again from the same graveyard. Because the creature is exiled the instant it leaves play, every target is spendable exactly once through this enchantment, which converts what reads like an infinite loop into a strictly finite toolbox. The color restriction keeps the design honest in a second way, confining it to where reanimation traditionally lives and preventing a blue enchantment from quietly becoming the premier home for every powerful creature in the game. Recursion built around a debt that always comes due, and a graveyard that empties as you draw on it.