Myr Landshaper

The whole card lives on one activated line, and that line is a type-changing trick disguised as a Myr: tap it, and a land you target picks up the artifact card type until end of turn. The body is incidental, a 1/1 that exists to be a tap handle; the work is in what it enables. Artifact-destruction is everywhere in artifact-heavy formats, and Myr Landshaper retrofits all of it to point at a manabase. Shatter, Naturalize, the broad disenchant suite: none of them were written to kill lands, but bolt the artifact type onto a Forest and suddenly they can. That is a genuinely odd design vector, an effect that only makes sense in an era whose vocabulary was built around what the artifact type touches. Because the ability reads "target land," it can reach across the table at will: paint an opponent's land, then crack it with destruction they never expected to lose a land to. As a piece of design it is a clean demonstration that type is a lever, not just a label on the type line: changing what something is changes which of your other cards can see it. As a card to actually cast, it is fragile and conditional, dead weight unless you are already running effects that care about the artifact type, and far more interesting to think about than to draw.