Immortal Servitude

The flexibility lives entirely in that X. Set it to one and you sweep your graveyard for every dead one-drop at once; set it to three and you bring back a board's worth of midrange bodies in a single sorcery. The hybrid pips are the second half of the design: each of the three colored costs reads as white or black, so the card slots into mono-white token-and-fodder shells and mono-black aristocrat decks with equal ease, no splash required. That symmetry is the point. Mass reanimation is usually a black monopoly, gated behind discard and self-mill setup; this routes the same effect through a cost structure that either color can pay outright, which is why it tends to find decks that flood the board with cheap, uniform creatures rather than decks chasing a single fat bomb. What disciplines the card is the exactness of X: it returns creatures of one specific mana value, not "up to X," so a curve built around a single converted cost gets rewarded and a scattered one gets stranded. It asks you to build the graveyard it wants to refill: a stack of creatures sharing a number, waiting for the one sorcery that empties the yard and refills the battlefield in the same breath.