Audacious Reshapers

The trade this creature offers is deliberately brutal in a way most artifact-cheating effects are not: it converts an artifact you already control into a bigger one off the top of your library, but bills you for the search itself. The damage clause turns your library's density into a life cost, so a deck packed wall-to-wall with artifacts pays almost nothing per activation while a leaner build can dig a dozen cards deep and take a genuinely dangerous hit. The ability rewards saturation rather than selection, punishing exactly the greedy configurations that would want to cherry-pick a single expensive payoff. Because the artifact enters the battlefield rather than the hand, it also sidesteps mana cost entirely, which makes the sacrifice-fodder cheap and the target expensive by design. The random-bottoming detail matters too: it strips away any lasting library manipulation, so the effect is pure velocity with no memory, a repeatable one-shot each turn that leaves your deck no cleaner than it found it. What you get is a red engine that treats artifacts as ammunition rather than assets, a tap-to-recycle loop where the cost is measured in both cardboard sacrificed and life spent, and the ceiling is set entirely by how willing you are to bleed for the next hit.