Chronomancer

A sacrifice outlet and a card-draw engine folded into one small flier, priced so that the body is almost incidental. The Atomic Transmutation ability turns any spare artifact into a fresh card at the cost of a mana and a tap, which makes this creature the throughput valve for any deck stocked with disposable artifacts: Treasures, Clues, servo and thopter tokens, whatever else is cluttering the board. Where most repeatable draw asks you to pay life or splash for blue, this asks only that you already have artifacts you were happy to spend. The unearth clause is what keeps the engine running after the 1/1 dies: for it comes back with haste to sacrifice one more thing, then exiles itself, so the death of the creature is not the death of the plan, just its last activation. That one-shot return is the discipline on an otherwise grindy loop; you get the body back exactly once, and only at sorcery speed, so it never becomes a permanent recursion fixture. The flying is the part that matters least, but it does quietly turn the leftover 1/1 into a clock while it waits for artifacts to feed it. What this card really is: a black artifact-sacrifice payoff built to reward a board already committed to producing fodder, with a graveyard second act baked in so it earns its slot twice.