Raiders' Karve

A 4/4 for three mana that can ramp when it swings is a rate that would be reckless on a creature, and the Vehicle chassis is exactly what pays for it. The body sits inert until you commit crew, so the ramp trigger costs you a real attack: you have to tap creatures with total power three or more, then send the Karve into combat, before the top-of-library land ever hits play. The sequencing is where the power gets rationed. A card advantage engine that only fires on attack has to survive the aggression it invites, and the reward (a land dropped tapped, so no untapped mana that turn either) is deliberately modest. What the design gets right is folding acceleration into a threat that also grinds: the same swing that pressures life totals also digs toward your next drop, so aggressive draws don't stall out and midrange draws don't run dry. It sits in the lineage of top-deck manipulation stapled to a beater, the Oracle of Mul Daya idea rebuilt as an artifact you can't easily kill with creature removal. The land only enters if it's on top, which keeps the effect honest against a lucky shuffle; on the turns it whiffs, you're still swinging with a 4/4. Unglamorous, but the math of a self-ramping evasion-free attacker holds up better than the flat stat line suggests.