Lodestone Needle // Guidestone Compass

Stun counters are the tell here: this is a soft removal spell dressed as an artifact, one that answers a creature or an artifact at instant speed by locking it down for two untap steps rather than killing it. That framing matters because it puts the whole front face in a strange middle zone. It trades a permanent answer for tempo, but once it has done its job it is a spent artifact sitting on the board, which is exactly the material Craft wants. The design ties the two halves together with unusual logic: the removal half is worth casting on its own, and once it has done its job, you feed it and another artifact into the transform, converting a spent piece of interaction into a repeatable engine. The back face pivots entirely: no longer interaction, but a sorcery-speed explore machine that grinds a creature bigger while smoothing land drops, typically once per turn since the tap cost limits it absent untap effects. That is the ambition of these dual-faced Craft artifacts generally, to make a card that earns its slot early and still has a second life late, but this one is cleaner than most about it because the two modes never fight for the same window. The front wants to be flash; the back is deliberately locked to sorcery speed, so you are never tempted to hold the removal hoping to explore instead. You cast the answer when you need it, then rebuild it into something that does not need to answer anything.