Kenku Artificer

Animating an artifact is old blue technology (March of the Machines and Ensoul Artifact both turn inert equipment and mana rocks into attackers), but this one takes the reverse route to the same problem. Rather than granting a large fixed body, it zeroes the target's base stats and rebuilds it with three +1/+1 counters, landing on a flying 3/3 that happens to also be whatever it was before. That distinction carries real strategic weight: because the counters hold the stats rather than a static buff, the resulting creature keeps its size after the trigger has resolved, and it plays cleanly with anything that doubles or moves counters. The target restriction is where the design does its balancing: noncreature artifacts only, so you cannot juice up something already carrying a body, and the animation is a one-time enter trigger, not a repeatable engine. The line on offer is flexible: turn your mana rock into a blocker, stapled to a 1/1, a piece built for artifact-dense decks that want their rocks and equipment to occasionally swing back. It is a modest creature doing a specific job: converting a dead permanent into an evasive threat on a single trigger, and doing it in blue, long the most comfortable color for blurring the line between artifact and creature.