Iron Man, Titan of Innovation

Legendary Artifact Creature — Human Hero {3}{U}{R} 4/4

Flying, haste Genius Industrialist — Whenever Iron Man attacks, create a Treasure token, then you may sacrifice a noncreature artifact. If you do, search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value, put it onto the battlefield tapped, then shuffle.