Salivating Gremlins

The trigger fires on each artifact entering, not on casting, which is the wrinkle worth sitting with: tokens count, copies count, an artifact creature returning from the graveyard counts, and a single Servo dropping is enough to swing the body to 4/3 with trample for the turn. It rewards the deck that floods the board with cheap artifacts rather than one that casts a handful of expensive ones, and it stacks: two artifacts in a turn means +4/+0 and the trample to push it through. The 2/3 base is built for this asymmetry, a body that survives small removal and chump blocks but stays inert until the artifacts arrive, so it asks you to sequence your turn around it rather than slamming it as a beater. As a Gremlin it sits at the aggressive edge of red's artifact-matters lineage, where the color's usual contribution is bodies that grow rather than engines that draw. The trample clause is the part that earns the slot: a +2/+0 boost on a creature that can be chump-blocked is a tempo trap, but one that runs over a single blocker turns every artifact you play into reach toward a finished game.