Gearsmith Prodigy

The conditional is the entire pitch: a 1/2 body that swings for two the moment any artifact sits beside it, which is the rate a one-drop blue beater would never earn on its own merits. Blue has almost never been handed an aggressive one-drop with a body that matters, so the artifact clause functions as the permission slip: the design only pays off inside a deck already leaning on cheap artifacts, where the +1/+0 comes nearly free and the 1/2 floor keeps it alive through early removal. The bonus is static, not a triggered payoff, which cuts both ways; lose your artifacts and the body sags back to a 1/2 that no longer pressures anything, chaining the card's clock to your ability to keep something metal in play. This is the color-pie loan a set reaches for when it wants to push an artifact-matters subtheme into blue: give the color a creature it can actually attack with, but keep that creature answerable to the artifact count so the aggression never comes for free. With nothing else out, it holds the ground as a defensive blocker; with even a Servo or a Treasure token alongside it, it starts hitting like a beater a full color over.