Soulreaper of Mogis

A repeatable sacrifice-for-cards engine welded onto a body, which earns it a slot over a one-shot spell that does the same conversion once and evaporates. Each activation costs a creature plus the mana, a rate that looks steep on paper and is, until you stop paying it in creatures you wanted to keep. That is the deckbuilding constraint doing its work: this only converts a battlefield of tokens, expendable one-drops, and death-trigger fodder into a steady stream of cards, and it punishes you for feeding it anything else. The mana cost per activation governs the loop's tempo; you cannot chain it faster than your lands allow, so it drains resources at a measured pace rather than dumping your board into your deck in a single turn. The enchantment-creature type line is not protection so much as extra exposure: it answers to creature removal and enchantment removal both, sitting in two sets of crosshairs at once rather than dodging either. A modest 2/3 frame keeps it defensive, big enough to trade or wall off early aggression while the engine spins up behind it. It is aristocrats infrastructure compressed into a single card, the outlet and the payoff in one Minotaur, asking only that you build a graveyard and a board worth spending.