Hobblefiend

The sacrifice cost here is the whole design idea: a two-drop that converts dead board scraps into a permanent size increase, one counter at a time. Trample is not decoration on that plan; it is the payoff. Each creature you feed the fiend makes it hit harder and makes the overflow larger, so a stalled board of chump blockers and expended tokens becomes fuel to punch damage through whatever the opponent leaves back. The activation asks for a mana and a body every time, which keeps the growth honest: this is not a free engine but a sink that wants a steady supply of expendable creatures, the kind an aristocrats or token shell generates as a byproduct. That activated ability is what makes it more than a mana sink, slotting into the same board state as death-payoffs and other sacrifice outlets: the creature you feed can be one you wanted in the graveyard anyway, and the counter is a bonus stacked on top of whatever that death was already worth. A modest red beater on rate, built for a deck that treats its own creatures as ammunition rather than assets.