Glint-Nest Crane

The body is the tax that makes the dig honest. A blue two-drop that looks four cards deep for an artifact is a strong rate in the abstract; the modest 1/3 flier attached to it is what keeps that selection from being free. The three toughness is doing real defensive work, walling the small attackers that pressure an artifact deck while it assembles its pieces, and the flying means the body never goes fully dead once the engine has fired. The selection is narrow by design. It finds only artifacts, so the card functions as a deckbuilding contract rather than a generic cantrip: you commit enough artifact density that digging four cards reliably hits, and in exchange you get a creature that doubles as a tutor for whatever combo piece, equipment, or mana rock the shell revolves around. The loose reading of "artifact card" matters here, since artifact creatures and artifact lands count, widening the hit rate for decks built to exploit them. The bottom-of-library clause is the quiet upside of that breadth: the misses go to the bottom in an order you choose rather than clogging the top of your deck, so the dig clears dead noise out of your future draws even when it whiffs. The ceiling scales directly with how far you are willing to commit to a single card type; the more artifacts in the deck, the closer this comes to a creature that fetches exactly what it needs.