The Fantasticar

The reward here reads the whole turn, not a single moment. The first noncreature spell each turn suits up the four-power flier as an attacker; the fourth in a single turn offers the vehicle as fuel, converting one body into four 4/4 fliers with haste. That threshold is the design's spine: the payoff arms only on the fourth cast in a turn, so the build wants to chain cheap noncreature spells inside one turn rather than accumulate them across a game. Both clauses stack toward the same goal, so a turn that reaches four spells has already animated the vehicle several times over and then upgrades that lone 4/4 into sixteen power in the air. What makes the sacrifice interesting is not a tension between attacking and waiting; it is that the same card serves as the modest attacker on a light turn and the launch platform on a heavy one, with no penalty for routing through the smaller mode first. The count sits alongside the storm-adjacent and prowess-adjacent payoffs that reward flooding a turn with cheap noncreature spells, but it hangs its trigger on a vehicle rather than a wizard. That is a genuinely unusual place to route the tally, and the fourth-cast clause turns a spell-density shell into one that ends games out of nowhere the turn it hits the number.