Thermal Navigator

Evasion bolted onto a sacrifice outlet is the design wrinkle here: the body is forgettable, but the activated ability turns it into a repeatable converter for any deck that wants to feed artifacts to something, then collects a flying attacker as the dividend. This was a product of an era when artifact-matters decks ran dense enough that "sacrifice an artifact" was a cost you were happy to pay anyway, with affinity payoffs and recursion loops giving the sacrifice itself a downstream reward. Read in isolation, granting flying to a 2/2 by eating artifacts looks worse than just attacking; read as a node in an artifact aristocrats build, it is a free outlet that also pressures defenses. Crucially, the ability carries no mana cost, only the sacrifice, so its throughput scales with whatever artifact production you can sustain in a single turn: clue tokens, treasure, servo and thopter swarms, anything that replaces itself. That makes it less a flier than a converter that happens to fly, sitting in the long line of artifact-fueled sacrifice enablers that reward going wide on cheap permanents rather than committing to one threat.