Pit Raptor

Pay-or-sacrifice was the conceit binding this cluster of upkeep-taxed creatures, and this is the version pushed hardest on rate: a 4/3 flier with first strike, a body that simply outclasses most four-mana creatures of its era, fenced behind an upkeep tax that demands you front its full again every turn or watch it leave. The friction is deliberate and brutal. You front-load a premium evasive threat, then bleed for it: the recurring payment is what holds a stat line this aggressive in check, because the card is only as good as the mana you can spare while doing everything else. That tension warps how you sequence a turn around it. Cast it early and the upkeep payment competes with developing your board; cast it late and the tax is trivial but the window to matter has shrunk. The sacrifice clause cuts the other way too: an opponent who can stall a single turn knows the clock runs against the controller, not them, since the tax never lapses. The Mercenary mechanic layered another wrinkle on top, with lower-cost Mercenaries fetching and chaining creatures into play, but the cards that defined the type were the ones like this, where the question was never "is the body good" but "how long can you afford to keep it." The answer was usually "not long enough," which is exactly what the designers were probing.