Foundry Screecher

The conditional pump is the whole design lesson here: a 2/1 flier that becomes a 3/1 the instant you control any artifact, with the payoff bar set as low as it can go. It does not ask for a Vehicle, an energy counter, or a specific artifact type, just one permanent of the right category, so an artifact-leaning shell satisfies it by doing what it already wanted to do rather than warping around a narrow trigger. That extra point of power undercosts the evasion without tipping the card into bomb territory, because the single point of toughness keeps it fragile and the bonus is reversible: strip the last artifact and the screecher deflates back to a 2/1, a real swing when combat math is riding on it, though the body survives the shrink. This is the cheap-payoff template a synergy theme needs to function: a creature that is unremarkable in a vacuum and genuinely good once the deck around it is humming, providing density rather than ceiling. The fragility is the honest part of the bargain. A 3/1 flier clocks fast and trades up against ground stalls, but it dies to almost anything, so it earns its keep by attacking on a timeline the opponent has to answer, not by sticking around to grind.