Soldevi Adnate

A black sacrifice outlet built around a conversion rate rather than a fixed payout: bigger creatures cash in for more mana, which makes this less a ritual and more a release valve for whatever expensive black or artifact bodies have already done their work. The design reads as an early answer to a recurring black problem, which is that the color generates large creatures and dying creatures with the same fluency but lacks a clean way to turn one back into resources at instant speed. By scaling output to mana value, the card rewards sacrificing something genuinely costly, so it slots naturally above a graveyard payoff rather than as a standalone engine. The color and type fence on the fuel does the balancing work: only black or artifact creatures feed it, so it cannot be bolted onto any sacrifice-fodder deck regardless of color identity. The tap symbol matters too, capping it at one conversion per turn cycle and pulling it away from the storm-style loops that an untapped, mana-positive sac outlet would invite. What survives from the era is the template itself: a creature that prices fuel by mana value and pays in a single color, a shape later black mana engines have echoed without quite retiring the original idea.